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DTSTART;TZID=America/Vancouver:20231019T100000
DTEND;TZID=America/Vancouver:20231019T110000
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CREATED:20231013T204741Z
LAST-MODIFIED:20231013T204741Z
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SUMMARY:CM Seminar: Marcel Franz – Quantum Matter Institute: d-mon: an improved transmon qubit based on a cuprate Josephson junction
DESCRIPTION:Marcel Franz – Quantum Matter Institute\nTitle: d-mon: an improved transmon qubit based on a cuprate Josephson junction \n  \nAbstract: Transmon qubit\, based on a superconducting Josephson junction shunted by a large capacitance\, is the workhorse component powering the majority of intermediate scale quantum computers currently in operation. I this talk I will describe a theoretical proposal for a novel transmon architecture dubbed “d-mon” that uses unconventional oxide superconductors and is designed to overcome one of the key shortcomings of the conventional transmon. The proposed d-mon architecture is based on a c-axis Josephson junction between a d-wave high-Tc cuprate and a conventional s-wave superconductor. Its chief advantage lies in the large and tunable anharmonicity of its energy spectrum that we predict should enable faster and more reliable gate operation. In contrast to some earlier cuprate-based qubit designs d-mon operates in the regime where quasiparticles are fully gapped and can be therefore expected to achieve long coherence times. \nSpeaker Bio: Marcel Franz is a Professor of Physics at The University of British Columbia and a Deputy Scientific Director of The Blusson Quantum Matter Institute. Franz is a leading expert in theories of topological quantum matter\, unconventional superconductivity and strongly correlated electron systems. His group has made a number of significant advances in these fields including the recent prediction of high-temperature topological superconductivity in twisted bilayers of cuprate superconductors. Franz has received numerous awards and recognitions for his contributions including the A.P. Sloan Fellowship (2002)\, Killam Research Fellowship (2007)\, has been elected Fellow of the APS (2014) and The Royal Society of Canada (2022). He obtained his PhD at The University of Rochester in 1994 and worked as a postdoctoral fellow and McMaster and Johns Hopkins universities before joining the faculty of The University of British Columbia in 2000.
URL:https://qmi.miffanytark.com/event/cm-seminar-marcel-franz-quantum-matter-institute-d-mon-an-improved-transmon-qubit-based-on-a-cuprate-josephson-junction/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20231012T100000
DTEND;TZID=America/Vancouver:20231012T110000
DTSTAMP:20231006T213542Z
CREATED:20231006T213542Z
LAST-MODIFIED:20231006T213542Z
UID:6427-1697104800-1697108400@qmi.miffanytark.com
SUMMARY:CM Seminar: Lea Nienhaus – Florida State University: Stressing Halide Perovskites
DESCRIPTION:Lea Nienhaus – Florida State University\nTitle: Stressing Halide Perovskites: Nanoscale Investigation of the Properties of Perovskite Thin Films \nAbstract: Solution-processed perovskite thin films consist of small grains with a size of 20 – 2000 nm connected by grain boundaries. As a result\, there is a vast inhomogeneity in the optical and electronic properties of the different grains/GBs within one film\, which can reduce the achievable energy output. In addition\, facile ion movement under external stimuli (light or electric fields) adds additional complexity to the system. However\, solvents can also be used to change the surface doping\, which can have immense impact on energy or charge transfer at the perovskite surface. \nTo gain insight into the optoelectronic and structural response of the perovskite thin film to these external stressors present under operating conditions\, we utilize a combination of scanning tunneling microscopy (STM) and optical spectroscopy. Furthermore\, single molecule absorption STM (SMA-STM) can probe the local inhomogeneity of the surface properties of the perovskite thin film under illumination by locally mapping the additional photogenerated tunneling current. To understand whether the local changes are caused by optoelectronic changes under illumination or structural changes\, we utilize synchrotron X-ray STM (SX-STM). Pump-probe wide-angle X-ray scattering indicates the presence of lattice deformations under optical illumination\, highlighting that the photocarriers distort the lattice\, and thus\, can change the underlying density of states as observed by SMA-STM. \nSpeaker bio: Lea Nienhaus obtained her PhD from UIUC in 2015. Following her postdoc at MIT\, she transitioned to FSU in 2018. Her interests are geared towards pushing the boundaries of optical spectroscopy. Outside of lab\, you can find her playing with her cats\, biking\, swimming or cooking. Additionaly\, she enjoys shining UV lights on household objects.
URL:https://qmi.miffanytark.com/event/cm-seminar-lea-nienhaus-florida-state-university-stressing-halide-perovskites/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230928T100000
DTEND;TZID=America/Vancouver:20230928T110000
DTSTAMP:20230925T213140Z
CREATED:20230925T213140Z
LAST-MODIFIED:20230925T213140Z
UID:6418-1695895200-1695898800@qmi.miffanytark.com
SUMMARY:CM Seminar: Ting Ge – University of South Carolina: Mechanics of Non-Concatenated Ring Polymers – Effects of Topology Revealed by Molecular Simulations
DESCRIPTION:Ting Ge – University of South Carolina\nTitle: Mechanics of Non-Concatenated Ring Polymers – Effects of Topology Revealed by Molecular Simulations \nAbstract: Few aspects are as prevalent and important as topology in polymer mechanics\, which provides an essential foundation for versatile functions of polymeric materials. Recent advances in chemistry have enabled the precise synthesis of non-concatenated ring polymers with distinctive topology. While many aspects of the statics and dynamics of ring polymers have been elucidated in the past several decades\, the structure-property relationship has not been completely established for ring polymer mechanics. Using molecular simulations with perfect control of polymer topology\, we make elastomers and thermoplastics out of non-concatenated ring polymers and investigate their mechanical properties during large deformation and failure. The simulations reveal that the elastomers made of cross-linked ring polymers are significantly more stretchable than cross-linked linear polymers [1]. Compared to linear polymers\, the entanglements between ring polymers do not act as effective cross-links. As a result\, the stretchability of cross-linked ring polymers is determined by the maximum extension of polymer strands between cross-links rather than between trapped entanglements as in cross-linked linear polymers. The simulations also reveal that the thermoplastics made of ring polymers fail through crazing as their linear counterparts under tensile loading [2]. The stable craze formation indicates the existence of an entanglement network in glassy ring polymers. Nevertheless\, the entanglement network consists of only a fraction of the topological constraints that determine the conformations of ring polymers. Both the structural features of the ring polymer craze and the drawing stress during the craze formation are related to the underlying entanglement network. Besides the simulations\, molecular theories have been developed to delineate the mechanical behaviors of ring elastomers and ring thermoplastics. The studies demonstrate the use of ring polymers as a transformative pathway to tailor polymer mechanics\, propelling a new paradigm of topological polymer physics entering materials science. \n[1] “Superstretchable elastomer from cross-linked ring polymers”\, J. Wang\, T. C. O’Connor\, G. S. Grest\, and T. Ge\, Physical Review Letters 128\, 237801 (2022).\n[2] “Crazing reveals an entanglement network in glassy ring polymers”\, J. Wang and T. Ge\, Macromolecules 54\, 7500 (2021).
URL:https://qmi.miffanytark.com/event/cm-seminar-ting-ge-university-of-south-carolina-mechanics-of-non-concatenated-ring-polymers-effects-of-topology-revealed-by-molecular-simulations/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230926T080000
DTEND;TZID=America/Vancouver:20230929T170000
DTSTAMP:20230824T161034Z
CREATED:20230824T161034Z
LAST-MODIFIED:20230824T161034Z
UID:6261-1695715200-1696006800@qmi.miffanytark.com
SUMMARY:Summer school – MPG-UBC-UTokyo Center: “X-rays for the study of quantum materials”
DESCRIPTION:Summer school – MPG-UBC-UTokyo Center: “X-rays for the study of quantum materials”\nOrganizers: Liu Hao Tjeng (MPI CPfS)\, Bernhard Keimer (MPI FKF\, Stuttgart)\, Dirk Manske (MPI FKF\, Stuttgart)\nLocation: Max-Planck-Institute f. Chemical Physics of Solids\, Dresden\, Germany \nList of Speakers\nAndrea Damascelli\nGeorge Sawatzky\nJim Allen\nFrank de Groot\nEva Benckiser\nJochen Geck\nClaire Donnelly\nGisela Schütz\nAndrea Severing\nGiacomo Ghiringhelli\nBernhard Keimer\nValentina Bisogni\nHlynur Gretarsson\nMaurits Haverkort\nLiu Hao Tjeng \nRegistration\nTo register\, please send the completed registration form to Summerschool2023@cpfs.mpg.de by 30 June 2023. The registration fee for MPI participants/ participants from other institutions is 125€ and should be paid by bank transfer (bank transfer details will be provided in the confirmation Email).
URL:https://qmi.miffanytark.com/event/x-rays-for-the-study-of-quantum-materials/
CATEGORIES:External event
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230921T100000
DTEND;TZID=America/Vancouver:20230921T113000
DTSTAMP:20230905T161210Z
CREATED:20230905T161210Z
LAST-MODIFIED:20230905T161210Z
UID:6347-1695290400-1695295800@qmi.miffanytark.com
SUMMARY:CM Seminar: Lesley Cohen – Chair of the Advisory Board: Non-collinear Mn3NiN Antiferromagnets
DESCRIPTION:Lesley Cohen – Chair of the Advisory Board\nTitle: Non-collinear Mn3NiN Antiferromagnets \nAbstract: Antiferromagnets (AFM) hold interest because of their potential for application in high density\, high speed spintronic devices\, as  an active layer and also as a component in superconducting S/AFM/S Josephson Junctions. Frustrated non-collinear antiferromagnets offer additional attractive functional properties due to their magnetic space group symmetry. Stimulated first by the prediction of piezomagnetism we embarked on a growth program of Mn3NiN films on various perovskite substrates by pulsed laser deposition. In this talk I will review the evidence for piezomagnetism and our observation of the anomalous Hall effect. We use scanning imaging of the anomalous Nernst effect to provide information about domain structure in our films. The phase diagram of magnetic order with biaxial strain in this family of materials predicts that compressively strained films should support a collinear ferrimagnetic phase as shown in the figure below. I will discuss the properties of this phase and implications and the magneto-optical properties crossing from the antiferromagnetic to ferrimagnetic phase. \nSpeaker Bio: Lesley Cohen is a Professor of Solid State Physics at Imperial College London. Her research focuses on quantum interference for organic thermoelectric\, energy-efficient solid-state caloric cooling\, competing for exchange antiferromagnets for spintronics and long-range triplet superconductivity. She is currently the Consul for the Faculty of Natural Sciences and Education at Imperial College and recently stepped down as head of Experimental Condensed Matter. She received the Imperial College Julia Higgins Award for her contribution to the promotion and support of women in science and remains committed to equality and diversity within STEM. \nDr. Cohen has served on numerous Boards including Superconductivity\, Science and Technology; Imperial College Consultants ICON; the Education Board for the Institute of Physics; Kings College London Science Advisory Board; and the External Advisory Board of IFW Dresden and the EPSRC Materials Strategic Advisory Technical Panel.
URL:https://qmi.miffanytark.com/event/cm-seminar-lesley-cohen-chair-of-the-advisory-board-non-collinear-mn3nin-antiferromagnets/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230914T100000
DTEND;TZID=America/Vancouver:20230914T113000
DTSTAMP:20230905T164704Z
CREATED:20230905T164704Z
LAST-MODIFIED:20230905T164704Z
UID:6354-1694685600-1694691000@qmi.miffanytark.com
SUMMARY:CM Seminar: Mattias Fitzpatrick – Dartmouth College: Quantum Simulation with Superconducting Circuits: Synthetic Quantum Matter to Non-Hermitian Sensing
DESCRIPTION:Mattias Fitzpatrick – Dartmouth College\nTitle: Quantum Simulation with Superconducting Circuits: Synthetic Quantum Matter to Non-Hermitian Sensing \nAbstract: In recent years\, superconducting circuits have garnered much attention due to their use in quantum computers and quantum annealers. However\, this technological platform can also be used to study problems in condensed matter and many-body physics where microwave photons are the particles of interest and interactions are engineered using superconducting qubits or other nonlinearities. In this talk\, I will describe my work building hyperbolic superconducting circuit lattices and the associated flat bands that arise in their band structure. From here\, I will discuss recent work in my new lab at Dartmouth\, where we have developed a means of controlling the effective photon hopping in lattices. Using directional amplification and phase shifters\, I will show how to create effectively tunable hopping rates in the Hermitian and non-Hermitian domains. Finally\, I will discuss nonlinearities in the gain-dominated regime and their implications for self-oscillation sensors.
URL:https://qmi.miffanytark.com/event/cm-seminar-mattias-fitzpatrick-dartmouth-college-quantum-simulation-with-superconducting-circuits-synthetic-quantum-matter-to-non-hermitian-sensing/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230913T100000
DTEND;TZID=America/Vancouver:20230913T120000
DTSTAMP:20230905T203055Z
CREATED:20230905T203055Z
LAST-MODIFIED:20230905T203055Z
UID:6356-1694599200-1694606400@qmi.miffanytark.com
SUMMARY:Canada’s Quantum Strategy And International Collaboration
DESCRIPTION:Countries are investing heavily in quantum computing and other quantum technologies. As Canada has recently released its Quantum Strategy\, this is an opportunity to foster further international collaborations. Panelists will discuss the opportunities and challenges Canada will be facing and what this could mean for Canada’s leadership in quantum research and development of quantum technologies. \nPANELISTS:\nDr. Sarah Burke\nAssociate Professor\, University of British Columbia \nDr. Aimee K. Gunther\nDeputy Director\, Quantum Sensors Challenge Program\, National Research Council Canada \nProf. Andrea Damascelli\nScientific Director\, Stewart Blusson Quantum Matter Institute | Professor\, Physics and Astronomy | Canada Research Chair in the Electronic Structure of Quantum Materials \nNick Werstiuk\nCEO\, Quantum Valley Ideas Lab \nEric Miller\nFellow\, Canadian Global Affairs Institute \nMODERATOR:\nMs. Alexandra Daoud\nVice President\, Intellectual Property at Anyon Systems \nRegister here
URL:https://qmi.miffanytark.com/event/canadas-quantum-strategy-and-international-collaboration/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230515T140000
DTEND;TZID=America/Vancouver:20230515T190000
DTSTAMP:20230417T231224Z
CREATED:20230417T231224Z
LAST-MODIFIED:20230417T231224Z
UID:5727-1684159200-1684177200@qmi.miffanytark.com
SUMMARY:encou(n)ters: Ars Scientia symposium
DESCRIPTION:The Ars Scientia research cluster launched a collaborative residency program in 2021\, bringing together artists and physicists to interrogate the intersections of art and science. Please joins us at UBC Botanical Garden Reception Centre for our 2nd annual research symposium\, encou(n)ters\, to learn more about residency experiences and engage in interdisciplinary discussions with our participating artist and physicist investigators.  \nAlongside presentations from Ars Scientia collaborators\, we are honoured to invite Kavita Philip for a keynote lecture. UBC’s Research Excellence Cluster program seeded Ars Scientia with the objective of creating programming that fuses the practices of art and science in the emerging field of interdisciplinary research. \nBuilding Momentum\, 2-3pm \nOpening remarks by Ars Scientia research leads Shelly Rosenblum\, Jeremy Heyl and Andrea Damascelli; \nArtist Talks by jg mair with Alannah Hallas\, and Timothy Taylor. \nExperiments in Real Space\, 3:15-4:30pm \nIntroduction and audience participation experience by James Day; Artist Talks by Josephine Lee\, Kelly \nLycan + Justine Chambers\, and Scott Billings. \nKeynote Address: Kavita Philip\, 5–6pm \nIntroduction by Susan Sechrist\, Keynote Address by Kavita Philip. \nPlease join us for a reception following the panels to continue the conversation and enjoy the garden. \n\nBanner photo by Kelly Lycan\, index card from Andrew Ng’s research documentation (note created on September 8\, 1982 at UBC; from extensive collection of research polaroids and index cards rescued by Kirk Madison; gifted to Kelly Lycan during Ars Scientia Residency\, 2021). \nREGISTER HERE
URL:https://qmi.miffanytark.com/event/encounters-ars-scientia-symposium/
LOCATION:UBC Botanical Gardens\, 6804 SW Marine Drive\, Vancouver\, British Columbia\, V6T 1Z4\, Canada
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230510T080000
DTEND;TZID=America/Vancouver:20230512T170000
DTSTAMP:20230213T174313Z
CREATED:20230213T174313Z
LAST-MODIFIED:20230213T174313Z
UID:5411-1683705600-1683910800@qmi.miffanytark.com
SUMMARY:Quantum Sensors for Vacuum Metrology
DESCRIPTION:  \nQuantum Sensors for Vacuum Metrology\nVacuum metrology for the high\, ultra\, and extreme high vacuum regimes is presently undergoing a revolution driven by new techniques that recast the Pascal in terms of observable quantum phenomena and fundamental constants of nature. This workshop is meant to bring together key members of this nascent field to discuss the latest research\, achievements\, and technical developments. \nDates: May 10-12\, 2023 (Participants should plan to arrive on the 9th and depart on the 13th or the evening of the 12th.) \nLocation: 185 East Mall\, Vancouver\, BC\, Canada \nOrganizers: Dr. Roman V. Krems\, Dr. Kirk W. Madison \nCore speakers:\n\nDr. Stephen Eckel\, National Institute of Standards and Technology\, USA\nDr. Daniel Barker\, National Institute of Standards and Technology\, USA\nDr. Julia Scherschligt\, National Institute of Standards and Technology\, USA\nDr. Jacek Kłos\, University of Maryland\, USA\nDr. Karl Jousten\, Physikalisch-Technische Bundesanstalt (PTB)\, Germany\nDr. Matthias Bernien\, Physikalisch-Technische Bundesanstalt (PTB)\, Germany  \nDr. Tom Rubin\, Physikalisch-Technische Bundesanstalt (PTB)\, Germany \nDr. Dong Meng\, Lanzhou Institute of Physics\, China\nDr. Pinrui Shen\, Quantum Valley Ideas Lab\, Waterloo\, Canada\nDr. James L. Booth\, British Columbia Institute of Technology\, Burnaby\, Canada\n\nRecommended accommodation: \nWest Coast Suites \nhttps://suitesatubc.com/accommodations/west-coast-suites/ \nTRIUMF House \nhttps://triumfhouse.ca/ \n  \nFor more information\, please see the event website here. \n  \nRegister here\n 
URL:https://qmi.miffanytark.com/event/workshop-quantum-sensors-for-vacuum-metrology/
CATEGORIES:Conferences
ATTACH;FMTTYPE=image/jpeg:https://qmi.miffanytark.com/wp-content/uploads/2023/02/Q-Sensors-for-Vacuum-Metrology.jpg
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230427T100000
DTEND;TZID=America/Vancouver:20230427T110000
DTSTAMP:20230417T230629Z
CREATED:20230417T230629Z
LAST-MODIFIED:20230417T230629Z
UID:5724-1682589600-1682593200@qmi.miffanytark.com
SUMMARY:Packing a Suitcase for a Journey through 100 Years of Quantum Mechanics
DESCRIPTION:In this demonstration\, PhD students Rafael Haenel and Niclas Heinsdorf will be showcasing the suitcase that you may have seen around the building. \nTitle: Packing a Suitcase for a Journey through 100 Years of Quantum Mechanics \nAbstract: Join us for a live experimental demonstration of entanglement and interference using single photon pairs. We will perform a series of experimental demonstrations from 100 years of quantum mechanics\, including last year’s Nobel prize winning experiment\, the measurement of violation of Bell inequalities. \nDate: Thursday April 27\, 2023 \nTime: 10:00 am \nLocation: Brimacombe 311 \nEveryone is welcome. Coffee and pastries will be served.
URL:https://qmi.miffanytark.com/event/quantum-suitcase/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230418T153000
DTEND;TZID=America/Vancouver:20230418T163000
DTSTAMP:20230310T234946Z
CREATED:20230310T234946Z
LAST-MODIFIED:20230310T234946Z
UID:5562-1681831800-1681835400@qmi.miffanytark.com
SUMMARY:Ars Scientia Artist Talks 2023: Latent Life by Scott Billings
DESCRIPTION:Please join Scott Billings for Latent Life\, a presentation based on his recent research in the Ars Scientia residency. Drawing from a 1933 lecture in which Neils Bohr asserts that the impossibility of using a physical explanation for the phenomenon of life is analogous to the insufficiency of using a mechanical analysis to understand phenomena of the atom\, Billings will discuss his seemingly conflicting dual practice as both visual artist and mechanical engineer. Reflecting upon a preoccupation with the animality of cinematic machine\, among (many) other things\, Billings will relay his recent direct experience with photonic writing at QMI’s NanoFab Lab and the wonderful new conundrum of making and exhibiting micro-sculptures that are far too small to see with the naked eye. \nFunded by UBC’s Research Excellence Cluster program\, Ars Scientia is a tripartite partnership between UBC’s Blusson QMI\, the Department of Physics and Astronomy and The Morris and Helen Belkin Art Gallery\, fostering new modes of knowledge exchange across the arts\, sciences and their pedagogies. \n  \nDate & time: April 18\, 3:30-4:30pm \nLocation: 311\, Brimacombe Building (2355 East Mall\, Vancouver\, BC V6T 1Z4) \nTicket: This event is free and open to the public – register below. \n  \nREGISTER HERE\n  \nIMAGE (ABOVE): Image courtesy of the artist.
URL:https://qmi.miffanytark.com/event/ars-scientia-artist-talks-2023-latent-life-by-scott-billings/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230413T100000
DTEND;TZID=America/Vancouver:20230413T110000
DTSTAMP:20230329T210838Z
CREATED:20230329T210838Z
LAST-MODIFIED:20230329T210838Z
UID:5666-1681380000-1681383600@qmi.miffanytark.com
SUMMARY:CM Seminar: Erik Sorensen – McMaster University: Ground State Solitons in Kitaev Spin Chains
DESCRIPTION:Erik Sorensen – McMaster University\nTitle: Ground State Solitons in Kitaev Spin Chains \nAbstract: The bond-dependent Ising interaction present in the Kitaev model has recently attracted considerable attention. The attention has mostly focused on the two-dimensional honeycomb lattice version of the Kitaev model where several materials has been identified as potential realizations. However\, one can also imagine realizing simpler one-dimensional Kitaev spin chains that still has a surprisingly rich structure. One example is the ferromagnetic material CoNb2O6 which shows signatures of bond dependent interactions.  It is usually assumed that for the Kitaev spin chains the presence of a magnetic field does not lead to any interesting new physics. However\, recently we have identified an unusual chiral soliton phase in antiferromagnetic Kitaev chains\, appearing when the field is applied in specific directions. The phase is centered around a special point where a two-fold degenerate ground-state can be exactly found. In this talk I will present some of the interesting physics related to the soliton phase for both integer and half-integer spin and discuss a simple variational\npicture of the soliton phase. \nSpeaker Bio: Erik Sorensen is originally from AArhus Denmark. He got his Ph. D. at the University of California\, Santa Cruz in Physics in 1992. After UCSC\, he spent two years (1992-94) as a postdoc at UBC in the physics department . From British Columbia he moved to Bloomington\, Indiana for a second postdoc (1994-96) in the condensed matter theory group. From December 1996 till the fall of 2001\, Professor Sorensen worked as a professeur at the Université Paul Sabatier in Toulouse and in the fall of 2001\, he joined the department of physics and astronomy at McMaster University. In general\, he work in the area of strongly correlated systems\, often on low-dimensional models of frustrated magnets and electronic and superconducting systems\, often using state of the art computational methods.
URL:https://qmi.miffanytark.com/event/cm-seminar-erik-sorensen-mcmaster-university-ground-state-solitons-in-kitaev-spin-chains/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230406T100000
DTEND;TZID=America/Vancouver:20230406T110000
DTSTAMP:20230331T210306Z
CREATED:20230331T210306Z
LAST-MODIFIED:20230331T210306Z
UID:5693-1680775200-1680778800@qmi.miffanytark.com
SUMMARY:CM Seminar: Leslie M. Schoop – Princeton University:  The Chemistry of Quantum Materials
DESCRIPTION:Leslie M. Schoop – Princeton University\nTitle:  The Chemistry of Quantum Materials  \nAbstract: Quantum materials are hoped to change technology in various aspects. However\, most of the desired applications are hindered by the lack of suitable materials. In my group we are using concepts from chemistry to understand\, predict and synthesize new quantum materials. In this talk\, I will show how simple concepts\, such as measuring bond distances\, allow us to make predictions about electronic structures of materials\, which we can then use to find new quantum materials. I will also show how we can use chemical exfoliation\, a synthesis method that is much more used in energy science to create 2D nanosheets\, to synthesize novel 2D quantum materials. Examples are 2D magnets and superconductors\, for which our synthesis method allows for large-scale productions of inks to print electronics. \nSpeaker Bio: Dr. Leslie M. Schoop received her Diploma in Chemistry from Johannes Gutenberg University (2010) and PhD in Chemistry from Princeton University (2015). She then went on to work as a Minerva fast-track fellow under Professor Bettina Lotsch at the Max Planck Institute for Solid State Research (2015-2017). Dr. Schoop joined the Princeton University Department of Chemistry Faculty in 2017 and was tenured in 2022. In 2019 she won the Beckman Young Investigator award and became a Moore foundation EPiQS Materials Synthesis Investigator. In 2020 she was awareded the Packard fellowship for science and engineering and in 2021 the Sloan fellowship in Chemistry and the DOD Office of Naval Research Young Investigator award. In 2022 you was awarded the NSF CAREER award. The Schoop Lab is working at the interface of chemistry and physics\, using chemical principles to find new materials with exotic physical properties. \n(This event is virtual and can be watched at the link below or in BRIM/AMPL 311)
URL:https://qmi.miffanytark.com/event/cm-seminar-leslie-m-schoop-princeton-university-the-chemistry-of-quantum-materials/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230404T140000
DTEND;TZID=America/Vancouver:20230404T170000
DTSTAMP:20230310T235708Z
CREATED:20230310T235708Z
LAST-MODIFIED:20230310T235708Z
UID:5567-1680616800-1680627600@qmi.miffanytark.com
SUMMARY:Ars Scientia Artist Talks: Momentum Space: Reflections\, Speculations\, and Encounters by Timothy Taylor
DESCRIPTION:Please join UBC School of Creative Writing associate professor and bestselling author Timothy Taylor for a discussion of why working with QMI and the Belkin is of such specific interest to him as a writer. Taylor will address key aspects of his writing history that orient him towards investigation and to seeking immersive experiences in unfamiliar professional environments. Taylor will reflect on past collaborative projects with the Belkin involving other artists and academics\, as well as a family connection in the world of optical physics\, reactions to QMI’s Laboratory for Atomic Imaging Research and Crystal Growth Lab\, and his enthusiasm for the aesthetic appeal of certain key instruments used at QMI. Finally\, Taylor will offer a glimpse of the residency output\, Momentum Space\, a book in preparation with artist Jeff Mair. \nTimothy Taylor is an Associate Professor and Graduate Advisor in the English department at UBC. He is a bestselling and award-winning author of six book-length works of fiction and nonfiction including Stanley Park\, The Blue Light project\, and Silent Cruise. He is also a prolific journalist\, and has published hundreds of feature articles in publications such as The New York Times\, EnRoute\, Walrus\, and many others. \nFunded by UBC’s Research Excellence Cluster program\, Ars Scientia is a tripartite partnership between UBC’s Blusson QMI\, the Department of Physics and Astronomy and The Morris and Helen Belkin Art Gallery\, fostering new modes of knowledge exchange across the arts\, sciences and their pedagogies. \n  \nDate & time: April 4\, 2:00-3:00pm \nLocation: 311\, Brimacombe Building (2355 East Mall\, Vancouver\, BC V6T 1Z4) \nTicket: This event is free and open to the public – we ask all attendees to please register below. \nREGISTER HERE\n  \nIMAGE (ABOVE): AN ARS SCIENTIA COLLABORATION BETWEEN VISUAL ARTIST JG MAIR AND PHYSICIST ALANNAH HALLAS AT BLUSSON QMI; THE TWO WORKED TOGETHER IN HALLAS’S LAB TO TURN “INSIGHTFUL FAILURES” OF HIGH-ENTROPY OXIDES (A TYPE OF QUANTUM MATERIAL) INTO AN ARTIST’S MEDIUM – PAINT. PHOTO: RACHEL TOPHAM PHOTOGRAPHY.
URL:https://qmi.miffanytark.com/event/ars-scientia-artist-talks-2023-timothy-taylor/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230330T100000
DTEND;TZID=America/Vancouver:20230330T110000
DTSTAMP:20230322T162246Z
CREATED:20230322T162246Z
LAST-MODIFIED:20230322T162246Z
UID:5614-1680170400-1680174000@qmi.miffanytark.com
SUMMARY:CM Seminar: Adina Luican-Mayer – University of Ottawa: 2D Quantum materials and devices at the atomic scale
DESCRIPTION:Adina Luican-Mayer – University of Ottawa\nTitle: 2D Quantum materials and devices at the atomic scale \nAbstract:Material systems\, devices\, and circuits\, based on the manipulation of individual charges\, spins\, and photons in solid-state platforms are key for quantum technologies. The burgeoning field of quantum two-dimensional (2D) materials presents an emerging opportunity for the development of next-generation quantum technologies\, while also pushing the boundaries of fundamental understanding in condensed matter. Our laboratory aims to create quantum functionality in 2D systems by combining fabrication and assembly techniques of 2D layers with atomically precise scanning probe microscopy. \nIn this talk\, I will focus on scanning tunnelling microscopy and spectroscopy experiments aimed at creating novel moiré structures by twisting 2D layers\, including the demonstration of reversible local response of domain wall networks in ferroelectric interfaces of marginally twisted WS2 bilayers. I will also discuss our progress in realizing quantum-confined devices in 2D semiconductors. \nSpeaker Bio: Adina Luican-Mayer is an associate professor and interim Department Chair in the Physics Department at the University of Ottawa. She received her PhD in Physics from Rutgers University (2012). Prior to joining uOttawa\, she was the Alexei Abrikosov distinguished postdoctoral fellow at the Center for Nanoscale Materials at Argonne National Laboratory. She is the recipient of uOttawa Faculty of Science Early Career Researcher of the year (2020) and Ontario Early Researcher Award (2021). Her research group focuses on uncovering the novel electronic properties of low-dimensional quantum systems using scanning probe microscopy and supporting spectroscopic techniques.
URL:https://qmi.miffanytark.com/event/cm-seminar-adina-luican-mayer-university-of-ottawa-2d-quantum-materials-and-devices-at-the-atomic-scale/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230323T100000
DTEND;TZID=America/Vancouver:20230323T110000
DTSTAMP:20230317T210430Z
CREATED:20230317T210430Z
LAST-MODIFIED:20230317T210430Z
UID:5607-1679565600-1679569200@qmi.miffanytark.com
SUMMARY:CM Seminar: Xie Chen – California Institute of Technology:  Fracton and Chern-Simons Theory
DESCRIPTION:Xie Chen – California Institute of Technology\nTitle: Fracton and Chern-Simons Theory \nAbstract: Fracton order describes the peculiar phenomena that point excitations in certain strongly interacting systems either cannot move at all or can only move in a lower dimensional sub-manifold. It has recently been discovered in various lattice models\, tensor gauge theories\, etc. In this talk\, we discuss how another powerful field theory framework — the 2+1D Chern-Simons (CS) gauge theory — can be used to provide new insight and explore new possibilities in 3+1D fracton order. 2+1D U(1) gauge theories with a CS term provide a simple and complete characterization of 2+1D Abelian topological orders. To study 3+1D fracton order\, we extend the theory by taking the number of component gauge fields to be infinity. In the simplest case of infinite-component CS gauge theory\, different components do not couple to each other and the theory describes a decoupled stack of 2+1D fractional Quantum Hall systems with quasi-particles moving only in 2D planes — hence a fractonic system. More interestingly\, we find that when the component gauge fields do couple through the CS term\, more varieties of fractonic orders are possible. For example\, they may describe foliated fractonic systems which extends the framework found in exactly solvable models. Moreover\, we find examples which lie beyond the foliation framework\, characterized by 2D excitations of infinite order and braiding statistics that are not strictly local. \nSpeaker Bio: Xie Chen is a Professor of Theoretical Physics at the California Institute of Technology. Dr. Chen obtained her Ph.D. degree from MIT in 2012 and was a Miller research fellow at the University of California\, Berkeley before joining Caltech in 2014. Dr. Chen is a condensed matter theorist studying emergent phenomena in strongly interacting quantum many-body systems. She received the New Horizons in Physics Prize from the Breakthrough Foundation in 2020 and was named a Simons Investigator in 2021. \n  \n(This event is virtual and can be watched at the link below or in BRIM/AMPL 311)
URL:https://qmi.miffanytark.com/event/cm-seminar-xie-chen-california-institute-of-technology-fracton-and-chern-simons-theory/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230316T100000
DTEND;TZID=America/Vancouver:20230316T110000
DTSTAMP:20230310T231517Z
CREATED:20230310T231517Z
LAST-MODIFIED:20230310T231517Z
UID:5558-1678960800-1678964400@qmi.miffanytark.com
SUMMARY:CM Seminar: Frédéric Grillot – Télécom Paris/ University of New-Mexico: Semiconductor Quantum Dots
DESCRIPTION:Frédéric Grillot – Télécom Paris/ University of New-Mexico\nTitle: Semiconductor Quantum Dots \nAbstract: Semiconductor nanostructures with low dimensionality like quantum dots are one the best attractive solutions for achieving high performance photonic devices. When one or more spatial dimensions of the nanocrystal approach the de Broglie wavelength\, nanoscale size effects create a spatial quantization of carriers along with various other phenomena based on quantum mechanics. Thanks to their compactness\, great thermal stability and large reflection immunity\, semiconductor quantum dot lasers are very promising candidates for low energy consumption and isolation free photonic integrated circuits. When directly grown on silicon\, they even show a four-wave mixing efficiency much superior compared to the conventional quantum well devices. This remarkable result paves the way for achieving high-efficiency frequency comb generation from a photonic chip. Quantum dot lasers also exhibit a strong potential for applications in optical routing and optical atomic clock. Last but not least\, a quantum dot single photon source is a building block in secure communications\, and therefore can be applied to quantum information processing for applications such as quantum computers. This lecture will review the recent findings and prospects on nanostructure based light emitters made with quantum-dot technology. Many applications ranging from silicon-based integrated solutions to quantum information systems will be presented. In addition\, the lecture will highlight the importance of nanotechnologies on industry and society especially for shaping the future information and communication society. \nSpeaker Bio: Frédéric Grillot is currently a Full Professor at Télécom Paris (France) and a Research Professor at the University of New-Mexico (USA). His research interests include\, but are not limited to\, advanced quantum confined devices using III-V compound semiconductors\, quantum dots quantum dashes\, light-emitters based on intersubband transitions\, non-classical light\, nonlinear dynamics and optical chaos in semiconductor lasers systems as well as microwave and silicon photonics applications. \nProfessor Grillot has made outstanding technical contributions in photonics and optical communications. He has intensively contributed to the development of quantum dot devices enabling their utilization as future active devices with superior performance. In particular\, his recent achievements on epitaxial quantum dot lasers on silicon are crucial for the development of isolation-free integrated technologies. Among his major achievements\, he also reported the first private optical communication using mid-infrared chaotic light\, giant pulses emission in quantum cascade devices as well as multigigabits operation in the thermal atmospheric window with unipolar quantum optoelectronics. Overall\, his research is a strong input to the advancement of science and to the emerging practical applications in computer and quantum technologies\, as well as in more traditional areas such as optical communications. \nProfessor Grillot strongly contributes to promote and support the development of the general optics community. He has served diligently and successfully Optica in particular as an Associate Editor of Optics Express\, now as a Deputy Editor since September 2022. As of now\, he has published more than 130 journal articles\, 3 book chapters\, and delivered many invited talks in major international conferences and workshops. Frédéric Grillot is also a Fellow Member of the SPIE as well as a Senior Member of Optica and the IEEE Photonics Society. In 2022\, he received the IEEE Photonics Society Distinguished Lecturer Award which honors excellent speakers who have made technical\, industrial or entrepreneurial contributions to the field of photonics. \n  \nJointly organized with the IEEE Vancouver Joint Communications Chapter
URL:https://qmi.miffanytark.com/event/cm-seminar-frederic-grillot-telecom-paris-university-of-new-mexico-semiconductor-quantum-dots/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230302T100000
DTEND;TZID=America/Vancouver:20230302T110000
DTSTAMP:20230217T194855Z
CREATED:20230217T194855Z
LAST-MODIFIED:20230217T194855Z
UID:5444-1677751200-1677754800@qmi.miffanytark.com
SUMMARY:CM Seminar: John Birkbeck – Weizmann Institute of Science: The Quantum Twisting Microscope
DESCRIPTION:John Birkbeck – Department of Condensed Matter Physics\, Weizmann Institute of Science.\nTitle: The Quantum Twisting Microscope\n \nAbstract: In this talk\, I will present a new type of scanning probe microscope\, the Quantum Twisting Microscope (QTM)\, capable of performing local quantum interference measurements at a twistable interface between two quantum materials. Its working principle is based on a unique tip made of an atomically-thin two-dimensional material. This tip allows electrons to coherently tunnel into a sample at many locations at once\, with quantum interference between these tunneling events\, making it a scanning electronic interferometer. With an extra twist degree of freedom\, our microscope becomes a momentum-resolving local probe\, providing powerful new ways to study the energy dispersions of interacting electrons. I will present various experiments performed with this microscope\, demonstrating quantum interference at room temperature\, probing the conductance of in-situ twisting interfaces\, and imaging local energy dispersions of graphene and twisted bilayer graphene. \nSpeaker Bio: I am a postdoctoral researcher working at the Weizmann Institute of Science with Prof. Shahal Ilani. I completed my Ph.D. with Prof. Andre Geim and Prof. Irina Grigorieva at the University of Manchester\, UK. My research focuses on using unique scanning probe microscopes to visualize the electronic properties of 2D materials and vdW heterostructures.
URL:https://qmi.miffanytark.com/event/cm-seminar-john-birkbeck-weizmann-institute-of-science-the-quantum-twisting-microscope/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230221T140000
DTEND;TZID=America/Vancouver:20230221T150000
DTSTAMP:20230131T230452Z
CREATED:20230131T230452Z
LAST-MODIFIED:20230131T230452Z
UID:5359-1676988000-1676991600@qmi.miffanytark.com
SUMMARY:Ars Scientia Artist Talks 2023: Algorithmic Allegories by JG Mair
DESCRIPTION:Join visual/media artist and Ars Scientia Resident\, JG Mair\, for a discussion on his art practice and experiences as a collaborative participant in Ars Scientia. As part of his talk\, Mair will present one of his major works Chroma Chamber\, a web-based new media art installation that investigates human expectations of vision and machine algorithms by programmatically collating real-time Google image results to surround the viewer with the distilled colour of the words they speak.  \nFunded by UBC’s Research Excellence Cluster program\, Ars Scientia is a tripartite partnership between UBC’s Blusson QMI\, the Department of Physics and Astronomy and The Morris and Helen Belkin Art Gallery\, fostering new modes of knowledge exchange across the arts\, sciences and their pedagogies. \n  \nDate & time: Feb 21\, 2:00-3:00pm \nLocation: 311\, Brimacombe Building (2355 East Mall\, Vancouver\, BC V6T 1Z4) \nFor more information on this event\, please click here. \n  \n  \nIMAGE (ABOVE): AN ARS SCIENTIA COLLABORATION BETWEEN VISUAL ARTIST JG MAIR AND PHYSICIST ALANNAH HALLAS AT BLUSSON QMI; THE TWO WORKED TOGETHER IN HALLAS’S LAB TO TURN “INSIGHTFUL FAILURES” OF HIGH-ENTROPY OXIDES (A TYPE OF QUANTUM MATERIAL) INTO AN ARTIST’S MEDIUM – PAINT. PHOTO: RACHEL TOPHAM PHOTOGRAPHY.
URL:https://qmi.miffanytark.com/event/ars-scientia-artist-talks-2023-algorithmic-allegories-by-jg-mair/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230209T100000
DTEND;TZID=America/Vancouver:20230209T110000
DTSTAMP:20230207T184815Z
CREATED:20230207T184815Z
LAST-MODIFIED:20230207T184815Z
UID:5398-1675936800-1675940400@qmi.miffanytark.com
SUMMARY:CM Seminar:  Dmitri Pikulin – Microsoft: Aspects of Microsoft’s recent topological gap study
DESCRIPTION:Dmitri Pikulin – Microsoft \nTitle: Aspects of Microsoft’s recent topological gap study \nAbstract: I will discuss the theory and data analysis techniques behind the recent study searching for Majorana zero modes. I will describe how the transport techniques can help identify the boundary and bulk signatures of the topological phase. The analytical insight is confirmed by extensive numerical study and data analysis. I will finish with an example of an experimental observation.
URL:https://qmi.miffanytark.com/event/cm-seminar-dmitri-pikulin-microsoft-aspects-of-microsofts-recent-topological-gap-study/
CATEGORIES:CM Seminar
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230202T100000
DTEND;TZID=America/Vancouver:20230202T110000
DTSTAMP:20230116T182058Z
CREATED:20230116T182058Z
LAST-MODIFIED:20230116T182058Z
UID:5301-1675332000-1675335600@qmi.miffanytark.com
SUMMARY:CM Seminar: Patrick Ledwith – Harvard  University: Vortexability Chern bands in Twisted and Strained Graphene
DESCRIPTION:Patrick Ledwith – Harvard University \nTitle: Vortexability Chern bands in Twisted and Strained Graphene \nAbstract: Fractional Chern insulators realize the remarkable physics of the fractional quantum Hall effect (FQHE) in crystalline systems with Chern bands. The lowest Landau level (LLL) is known to host the FQHE\, but not all Chern bands are suitable for realizing fractional Chern insulators (FCI). Previous approaches to stabilizing FCIs focused on mimicking the LLL through momentum space criteria. Here instead we take a real-space perspective by introducing the notion of vortexability. Vortexable Chern bands admit a fixed operator that introduces vortices into any band wavefunction while keeping the state entirely within the same band. Vortexable bands admit trial wavefunctions for FCI states\, akin to Laughlin states. In the absence of dispersion and for sufficiently short ranged interactions\, these FCI states are the ground state — independent of the distribution of Berry curvature. Vortexable Chern bands were found to emerge naturally in chiral twisted graphene\, and fractional Chern insulators were subsequently observed experimentally. They were also recently proposed in periodically strained graphene. \nBio: Patrick Ledwith grew up near Philadelphia\, Pennsylvania. He got his undergraduate degree in Physics and Mathematics at MIT. There he worked with Leonid Levitov on electron hydrodynamics\, discovering and elucidating long-lived collective excitations in two-dimensional electron gases. He is now a graduate student working in Ashvin Vishwanath’s group. Here he has worked on several aspects of moiré materials including fractional Chern insulators\, superconductivity\, correlated insulators\, and topological charge density waves. He has been especially interested in developing analytic approaches to fractional Chern insulators. He has applied these methods to twisted bilayer graphene where they work especially well. He subsequently partnered with Amir Yacoby’s group in realizing and understanding experimentally observed fractional Chern insulating states at small magnetic fields. In his free time\, he likes to cook and play video games with his dog.
URL:https://qmi.miffanytark.com/event/cm-seminar-patrick-ledwith-harvard-university-vortexability-chern-bands-in-twisted-and-strained-graphene/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230126T100000
DTEND;TZID=America/Vancouver:20230126T110000
DTSTAMP:20230118T230827Z
CREATED:20230118T230827Z
LAST-MODIFIED:20230118T230827Z
UID:5306-1674727200-1674730800@qmi.miffanytark.com
SUMMARY:CM Seminar: Alannah Hallas: Entropy Engineering and Tunable Magnetic Order in the Spinel High Entropy Oxide
DESCRIPTION:Dr. Alannah Hallas: Blusson Quantum Matter Institute \nTitle: Entropy engineering and tunable magnetic order in the spinel high entropy oxide \nAbstract: The field of high entropy oxides (HEOs) flips traditional materials science paradigms on their head by seeking to understand what properties arise in the presence of profound configurational disorder. This disorder\, which emerges as the result of multiple elements sharing a single crystalline lattice\, can take on a kaleidoscopic character due to the vast numbers of possible elemental combinations and appears to imbue some HEOs with functional properties that far surpass their conventional analogs. While experimental discoveries abound\, efforts to characterize the true magnitude of the configurational entropy and understand its role in stabilizing new phases and generating superior functional properties have lagged behind. Understanding the role of configurational disorder in existing HEOs is the crucial link to unlocking the rational design of new HEOs with targeted properties. In this talk\, I will discuss our group’s efforts to establish a framework for articulating and beginning to address these questions towards achieving a complete understanding of the true role of entropy in HEOs. \nBio: Alannah Hallas is an Assistant Professor in the Department of Physics & Astronomy at UBC\, a Principal Investigator at the Stewart Blusson Quantum Matter Institute\, and a CIFAR Azrieli Global Scholar in Quantum Materials. Alannah’s research program is focused on the design\, discovery\, and crystal growth of new quantum materials\, leveraging a wide range of advanced crystal growth techniques. Her group characterizes the quantum magnetic properties of their materials using x-ray and neutron scattering as well as muon spin relaxation techniques.
URL:https://qmi.miffanytark.com/event/cm-seminar-alannah-hallas-entropy-engineering-and-tunable-magnetic-order-in-the-spinel-high-entropy-oxide/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230124T103000
DTEND;TZID=America/Vancouver:20230124T113000
DTSTAMP:20230121T054704Z
CREATED:20230121T054704Z
LAST-MODIFIED:20230121T054704Z
UID:5309-1674556200-1674559800@qmi.miffanytark.com
SUMMARY:Special Seminar by Kyle Monkman - Symmetry Protection in Hermitian and Non-Hermitian Hamiltonians 
DESCRIPTION:Speaker: Kyle Monkman\, The University of Manitoba \nTalk title: Symmetry Protection in Hermitian and Non-Hermitian Hamiltonians  \nAbstract: Symmetry-protected topological insulators are protected by both the symmetry and by the system’s band gap. This protection means that certain properties of the system remain unchanged by deformations of the (Hermitian) Hamiltonian. In my PhD work\, we have shown that entanglement is a symmetry protected quantity in various symmetry classes. \nOn the other hand\, when considering a system in an external environment\, it is difficult to show that the system is topologically protected. It is in these cases that modelling the time dynamics with a non-Hermitian Hamiltonian becomes relevant. Ultimately\, the goal is to classify non-Hermitian time dynamics under various symmetry constraints. If measurable quantities are protected in these systems\, then we would have a very robust quantum state.
URL:https://qmi.miffanytark.com/event/special-seminar-by-kyle-monkman-symmetry-protection-in-hermitian-and-non-hermitian-hamiltonians/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20230119T100000
DTEND;TZID=America/Vancouver:20230119T110000
DTSTAMP:20230103T192036Z
CREATED:20230103T192036Z
LAST-MODIFIED:20230103T192036Z
UID:5253-1674122400-1674126000@qmi.miffanytark.com
SUMMARY:CM Seminar: Mark Rudner: “The Lindblad Quantum Master Equation: Not Just for quantum Optics Anymore"
DESCRIPTION:Prof. Mark Rudner – University of Washington \nTitle: “The Lindblad Quantum Master Equation: Not Just for quantum Optics Anymore” \nAbstract: With the exception of the universe as a whole\, the evolution of a quantum system is generically non-unitary due to the coupling between the system and its environment. In quantum optics\, the powerful framework of Lindblad master equations has been developed and employed for many years to describe the effective evolution of atomic-like systems in the presence of electromagnetic and other environmental degrees of freedom. Importantly\, explicit derivations of Lindblad master equations have traditionally relied on highly restrictive assumptions on energy level spacings that limit its applicability to few-level/few-body systems. In this talk I will review the basic features of evolution of open quantum systems\, and describe a new route to obtaining the Lindblad equation which circumvents all restrictive assumptions on the nature of the system at hand. This “universal Lindblad equation” can therefore be applied to a wide range of many-body systems\, including emerging quantum hardware with several to many coupled qubits and many-body systems driven far from equilibrium. The explicit expressions for the “jump operators” that describe incoherent processes induced by the bath have a natural interpretation in terms of an operator spreading picture\, akin to that which has recently provided much insight into thermalization of closed quantum systems. I will conclude with a discussion of future prospects and applications of this new framework. \nBio: Mark Rudner is the Kenneth K. Young Memorial Professor of Physics at the University of Washington. His research interests span a broad range of topics in theoretical condensed matter physics and quantum dynamics. Following his PhD at MIT\, in which he studied classical and quantum control in solid state spin and superconducting qubits\, as well as transport in graphene\, in 2008 Mark moved to Harvard for a postdoctoral fellowship. During this time\, he developed foundational works on topological phenomena in both driven (“Floquet”) and open (non-Hermitian) quantum systems. In 2012\, Mark moved to Copenhagen\, where he joined the Center for Quantum Devices at the Niels Bohr Institute and took charge of the Condensed Matter Theory group at the Niels Bohr International Academy. Over the next decade\, Mark maintained a role as one of the leaders in the emerging fields of Floquet engineering and non-equilibrium quantum dynamics\, while further exploring novel (linear and non-linear) collective phenomena that arise from the interplay of quantum geometry and interparticle interactions. In 2021 Mark joined the University of Washington\, where he is continuing these efforts while expanding into new directions in collaboration with his experimental and theoretical colleagues.
URL:https://qmi.miffanytark.com/event/cm-seminar-mark-rudner-the-lindblad-quantum-master-equation-not-just-for-quantum-optics-anymore/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221212T090000
DTEND;TZID=America/Vancouver:20221213T170000
DTSTAMP:20221122T220111Z
CREATED:20221122T220111Z
LAST-MODIFIED:20221122T220111Z
UID:5129-1670835600-1670950800@qmi.miffanytark.com
SUMMARY:New Frontiers in Quantum Materials Research (Online)
DESCRIPTION:The Rice University Center for Quantum Materials and the Stewart Blusson Quantum Matter Institute at the University of British Columbia will host an online workshop titled New Frontiers in Quantum Materials Research on Dec 12-13. \n  \nSessions & Speakers \nStrange Metals & Topology \nJie Shan (Cornell)\, Doug Bonn (UBC)\, Joern Bannies (UBC)\, Emilia Morosan (Rice) \nFlat Bands & Heterostructures \nJosh Folk (UBC)\, Ming Yi (Rice)\, Benjamin Zhou (UBC)\, Pengcheng Dai (Rice) \nStrange Metals Near Localization \nSilke Paschen (TU Vienna\, Austria)\, Meigan Aronson (UBC\, QimiaoSi (Rice)\, Doug Natelson (Rice) \nTopology & 2D Systems \nMatteo Michiardi (UBC)\, Yonglong Xie (Rice)\, Jing Liang (UBC) \n  \nTo register\, please click here.
URL:https://qmi.miffanytark.com/event/new-frontiers-in-quantum-materials-research-online/
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221201T100000
DTEND;TZID=America/Vancouver:20221201T110000
DTSTAMP:20221104T225912Z
CREATED:20221104T225912Z
LAST-MODIFIED:20221104T225912Z
UID:5042-1669888800-1669892400@qmi.miffanytark.com
SUMMARY:CM Seminar: Thomas Scaffidi - Spread and Erase - How Electron Hydrodynamics Can Eliminate the Landauer-Sharvin Resistance
DESCRIPTION:Thomas Scaffidi – University of California Irvine \nTitle: Spread and Erase – How Electron Hydrodynamics Can Eliminate the Landauer-Sharvin Resistance \nAbstract: What is the ultimate limit of conductance of a metallic device of lateral size W? In the ballistic limit\, the answer is the Landauer-Sharvin conductance\, which is associated with an abrupt reduction of the number of conducting channels when going from the contacts to the device. However\, the ballistic limit is not always the best-case scenario\, since adding strong electron-electron scattering can take electrons to a viscous regime of transport for which “super-ballistic” flows were recently studied. In this talk\, we will show that by a proper choice of geometry which resembles a “wormhole”\, it is possible to spread the Landauer-Sharvin resistance throughout the bulk of the system\, allowing its complete elimination by electron hydrodynamics. This effect arises due to the interplay between geometry and strong electron-electron scattering\, which allows for a net transfer of carriers from reflected to transmitted channels. Finally\, we will discuss a recent experiment in a Corbino geometry which realizes one half of this “wormhole” geometry. \nRefs:\nTheory: Phys. Rev. Lett. 129\, 157701 (2022)\nExperiment: Nature 609\, 276–281 (2022) \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-thomas-scaffidi-spread-and-erase-how-electron-hydrodynamics-can-eliminate-the-landauer-sharvin-resistance/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221124T100000
DTEND;TZID=America/Vancouver:20221124T110000
DTSTAMP:20221108T200540Z
CREATED:20221108T200540Z
LAST-MODIFIED:20221108T200540Z
UID:5048-1669284000-1669287600@qmi.miffanytark.com
SUMMARY:CM Seminar: Long Ju - Electron Correlation and Coupling with Phonon in the Trilayer Graphene/hBN Moire Superlattice
DESCRIPTION:Long Ju – MIT Physics Department  \nTitle: Electron Correlation and Coupling with Phonon in the Trilayer Graphene/hBN Moire Superlattice \nAbstract: ABC-stacked trilayer graphene/hexagonal boron nitride moiré superlattice (TLG/hBN) has emerged as a playground for correlated electron physics. A spectroscopy study of this system is\, however\, challenging due to the device configuration. In this talk\, I will introduce our recent efforts on FTIR photocurrent spectroscopy measurements of dual-gated TLG/hBN. We observed strong gate-tunable optical transitions that originated from the moire flat band. At half-filling of the valence flat band\, a broad absorption peak emerges at ~18 meV\, indicating direct optical excitation across an emerging Mott gap. Furthermore\, I will talk about a unique moire-enabled interlayer electron-phonon coupling phenomenon in this system. The ZO phonon in hBN hybridizes with electron-hole excitations in trilayer graphene and appear as an asymmetric peak in the photocurrent spectrum. This Fano line-shaped peak evolves continuously as we tune the displacement field. I’ll talk about the implications of this phenomenon to engineering the physics of moire quantum matters. \nBio: Long Ju joined the MIT Physics Department as an assistant professor in January 2019. He received his B.S. in Physics in 2009 from Tsinghua University\, China\, and his Ph.D. in Physics in 2015 from the University of California\, Berkeley. He then moved to Cornell University\, where he was a Kavli postdoctoral fellow until December 2018. \n  \n​ \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-long-ju-electron-correlation-and-coupling-with-phonon-in-the-trilayer-graphene-hbn-moire-superlattice/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221117T140000
DTEND;TZID=America/Vancouver:20221117T150000
DTSTAMP:20221116T191757Z
CREATED:20221116T191757Z
LAST-MODIFIED:20221116T191757Z
UID:5118-1668693600-1668697200@qmi.miffanytark.com
SUMMARY:Special Seminar: Thin film lithium niobate photonic platform
DESCRIPTION:Speaker: Marko Loncar\, Harvard University \nAbstract: I will present thin film lithium niobate photonic platform\, featuring strong light confinement and dense integration\, that has the potential to revolutionize optical communications\, microwave and quantum photonics. Electro-optic modulators\, frequency combs\, photon pair sources\, and their integration with lasers and detectors\, will be discussed.
URL:https://qmi.miffanytark.com/event/special-seminar-thin-film-lithium-niobate-photonic-platform/
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221117T100000
DTEND;TZID=America/Vancouver:20221117T110000
DTSTAMP:20221110T004813Z
CREATED:20221110T004813Z
LAST-MODIFIED:20221110T004813Z
UID:5058-1668679200-1668682800@qmi.miffanytark.com
SUMMARY:CM Seminar: Professor Kai-Mei C Fu - Quantum Point Defects: Can These Defects Be Less Defective?
DESCRIPTION:Professor Kai-Mei C Fu –  University of Washington  \nTitle: Quantum point defects: Can these defects be less defective? \nAbstract: Point defects in crystals are the solid state analog to trapped ions. Thus these “quantum defects”\, which can be integrated into solid-state devices\, have gained popularity as qubit candidates for scalable quantum networks. In this talk\, I will introduce some of the basic quantum defect properties desirable for quantum network applications. I will highlight my own group’s efforts at understanding and controlling the properties of defects in diamond including (1) synthesis\, frequency and emission control of deep-level vacancy complexes in diamond and (2) properties of shallow-level donors in ZnO\, including single donors and intentionally synthesized donors in ZnO. \nBio: Kai-Mei Fu is the Virginia and Prentice Bloedel Professor of Physics and Electrical and Computer Engineering at the University of Washington and holds a dual appointment with the Pacific Northwest National Laboratory. Kai-Mei received their PhD in Applied Physics \nin 2007 from Stanford University. Their research focuses on the synthesis\, characterization and control of optically active quantum defects in crystals\, with applications in quantum networks and sensing. At UW\, Kai-Mei is the Director of UW’s NSF National Research Training Program: Accelerating Quantum-Enabled Technologies and the co-chair of UW’s interdisciplinary QuantumX Steering Committee.  They are also the Deputy Director of the Department of Energy National Quantum Initiative (NQI) Co-design Center for Quantum Advantage. In their free time\, Kai-Mei enjoys spending time with their family outdoors in the beautiful Pacific Northwest. \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-professor-kai-mei-c-fu-quantum-point-defects-can-these-defects-be-less-defective/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221110T100000
DTEND;TZID=America/Vancouver:20221110T110000
DTSTAMP:20221026T201345Z
CREATED:20221026T201345Z
LAST-MODIFIED:20221026T201345Z
UID:5020-1668074400-1668078000@qmi.miffanytark.com
SUMMARY:CM Seminar: Joyce Poon: Visible-light Silicon Integrated Photonics for Future Computing
DESCRIPTION:Joyce Poon – University of Toronto \nTitle: Visible-light Silicon Integrated Photonics for Future Computing \nAbstract: The emerging demands of computing require hardware advances to realize new types of computing architectures and interfaces. Foundry silicon photonics leverages the maturity of microelectronics manufacturing to fabricate photonic integrated circuits. Today\, silicon photonics is mostly used in the short-wave infrared spectrum for optical communications. I will discuss how foundry silicon photonics in the visible spectrum is an enabling technology for future computing\, addressing applications such as displays\, neural implants\, and quantum computing. \nBiography: Joyce Poon is the Managing Director at the Max Planck Institute of Microstructure Physics\, a Professor of Electrical and Computer Engineering at the University of Toronto\, and an Honorary Professor in the Faculty of Electrical Engineering and Computer Science at the Technical University of Berlin.  She currently serves as a Director-at-Large for Optica (formerly the Optical Society\, OSA). She and her team specialize in integrated photonics on silicon.  Prof. Poon obtained the Ph.D. in Electrical Engineering from Caltech in 2007. She is a Optica Fellow and a Fellow of the IEEE.
URL:https://qmi.miffanytark.com/event/cm-seminar-joyce-poon-visible-light-silicon-integrated-photonics-for-future-computing/
CATEGORIES:CM Seminar,Student event
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
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