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X-WR-CALNAME:Stewart Blusson Quantum Matter Institute
X-ORIGINAL-URL:https://qmi.miffanytark.com
X-WR-CALDESC:Events for Stewart Blusson Quantum Matter Institute
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DTSTART;TZID=America/Vancouver:20221004T120000
DTEND;TZID=America/Vancouver:20221004T130000
DTSTAMP:20221003T182524Z
CREATED:20221003T182524Z
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SUMMARY:Dr. Sebastian Paeckel: Tensor network methods for open electron-phonon systems: Bipolarons in the presence of dissipation
DESCRIPTION:Dr. Sebastian Paeckel: Dr. Sebastian Paeckel is from LMU Germany and is one of the world leading experts in Tensor Network methods. \nTitle: Tensor network methods for open electron-phonon systems: Bipolarons in the presence of dissipation \nAbstract: Studying the interplay between electrons and phonons recently has seen a remarkable revival\, driven by both methodical progress\, as well as fascinating new physical insights\, such as the possibility of light-bipolaron induced superconductivity [1\,2] or the enhancement of transport properties [3]. Here\, investigating the effects of environments (dissipative\, thermal\, driven) coupled to the phonon system is a crucial but enormously challenging problem\, which on the one hand is important to understand the validity of effective\, isolated models\, while on the other hand allows for tailored manipulations of the phononic state. Recently\, we developed a new toolbox of tensor network methods which are designed to allow an efficient treatment of electron-phonon systems in- and out-of equilibrium as well as coupled to an environment. Exhibiting a speed-up of significantly more than an order of magnitude\, we are able to implement open quantum system techniques\, which previously had been way too expensive to be of proper use for studying large system sizes by means of tensor network methods.\nIn this talk I introduce the developed tools and give a brief overview of the current state\, their potential and limitations. Furthermore\, I discuss a first application\, namely the effect of a dissipative environment\, coupled to the Hubbard-Holstein model\, putting the emphasis on a previously reported enhancement of the metallic phase.\n[1]  Phys. Rev. Lett. 121\, 247001 (2021)\n[2]  https://doi.org/10.48550/arXiv.2203.07380\n[3] Scientific Reports volume 7\, 3774 (2017) \nShort Bio: Sebastian did his PhD in Göttingen from 2015-2019 focussing on the development Matrix Product States (MPS) methods\, in particular time evolution methods. In 2019 he had an internship at Microsoft Station Q iand studied transport through Majorana Islands. In 2020\, he became a Junior Researcher Leader in LMU in Munich and started studying electron phonon systems (method development and application\, also to quantum chemistry problems).
URL:https://qmi.miffanytark.com/event/dr-sebastian-paeckel-tensor-network-methods-for-open-electron-phonon-systems-bipolarons-in-the-presence-of-dissipation/
CATEGORIES:Other seminars
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221012T110000
DTEND;TZID=America/Vancouver:20221012T120000
DTSTAMP:20221011T171818Z
CREATED:20221011T171818Z
LAST-MODIFIED:20221011T171818Z
UID:4961-1665572400-1665576000@qmi.miffanytark.com
SUMMARY:R. Jason Jones: Frequency Comb Spectroscopy of Laser Produced Plasmas
DESCRIPTION:Professor R. Jason Jones – University of Arizona \nTitle: Frequency Comb Spectroscopy of Laser Produced Plasmas \nWhen: Wednesday\, October 12\, 2022 at 11am \nWhere: QMI 488 \nAbstract: In this talk I’ll give an overview of our work developing spectroscopic techniques with frequency comb sources from the XUV to the MIR. In particular\, I’ll focus on our work studying basic aspects of atomic\, ionic\, and molecular formation in laser-produced plasmas (LPP’s) using dual-comb spectroscopy. Our interest in such LPP’s includes their use in sample preparation for precision atomic/molecular spectroscopy and material analysis as well as surrogates for studying chemical/nuclear explosions and formation of heavy elements within kilonova. \nBio: Professor R. Jason Jones holds the John Paul Schaefer Endowed Chair in Optical Sciences at the University of Arizona. He leads a research group in experimental optical physics at the Wyant College of Optical Sciences. His research interests include ultrafast optics\, nonlinear light-matter interactions\, high-precision optical spectroscopy\, and the development and application of femtosecond frequency combs. Recent work focuses on novel architectures for optical atomic clocks and time-resolved dual-comb spectroscopy from the XUV to the MIR\, including the first demonstration of its use in studying atomic\, ionic\, and molecular formation inside laser-produced plasmas. Dr. Jones has also been instrumental in the establishment of the annual Winter School and Workshop at the Wyant College of Optical Sciences as a nation-wide event to introduce undergraduates to research and career opportunities in the field of Optics and Photonics. Dr. Jones received his PhD from the University of New Mexico in 2001. He continued his work as a research associate at JILA (a joint institute of the University of Colorado and the National Institute of Standards and Technology)\, where he was supported by a fellowship from the National Research Council\, working on the continued development and applications of fs frequency combs. In 2005 he demonstrated the up-conversion of frequency combs into the vacuum-ultraviolet for the first time. He continued to work as a Senior Research Associate of JILA until July 2006 when he left to join the College of Optical Sciences at the University of Arizona. He is a recipient of the NSF CAREER award and DARPA’s Young Investigator awards and is a member of the American Physical Society and the Optical Society of America. He holds two US patents and has published over 50 peer-reviewed articles.
URL:https://qmi.miffanytark.com/event/r-jason-jones-frequency-comb-spectroscopy-of-laser-produced-plasmas/
CATEGORIES:Other seminars
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221013T100000
DTEND;TZID=America/Vancouver:20221013T110000
DTSTAMP:20221004T221006Z
CREATED:20221004T221006Z
LAST-MODIFIED:20221004T221006Z
UID:4950-1665655200-1665658800@qmi.miffanytark.com
SUMMARY:CM Seminar: Dr. Anushya Chandran - Quantization of Dynamics in Quasi-periodically Driven Systems
DESCRIPTION:Dr. Anushya Chandran: Boston University \nTitle: Quantization of dynamics in quasi-periodically driven systems \nAbstract: In the past decade\, quantum simulators have increased in their power and scope\, offering exquisite dynamical control of tens or even hundreds of individual atoms/ions. \nConcurrently\, a topological revolution in our understanding of electronic band structures has taken place\, driven by the discovery of topological insulators\, graphene and other topological materials. Remarkably\, these advances can be connected — the dynamics of driven few level systems can be described using band structures in “synthetic dimensions\,” one per driving tone. Topological order in the synthetic band structure then leads to quantized dynamical responses in the quantum simulator. \nIn this talk\, I will use a unifying frequency lattice construction to reveal non-adiabatic topological responses in quasi-periodically driven systems. We will find that quasi-periodically driven qubits already exhibit topologically distinct dynamical phases\, and that a 2-tone driven wire can function as a quantized energy pump at any temperature. The latter system provides one of the few examples of many-body localization protected order that is absolutely stable. I will argue that the quantized energy pumping regime is accessible in near-term optical and microwave cavity-QED experiments\, and that furthermore\, it is useful to prepare highly excited non-classical cavity states and entangled cavity-qubit states. \nBio: Anushya Chandran studies the organizing principles of quantum systems far from equilibrium. Her research sheds light on the process of thermalization\, designs protocols to achieve non-trivial quantum dynamics\, and informs near-term quantum device design. Anushya hails from India\, where she studied at the Indian Institute of Technology in Madras. She received her PhD from Princeton University and performed post-doctoral research at Perimeter Institute before joining Boston University. She is the recipient of the Sloan fellowship and the NSF young investigator career award. \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-dr-anushya-chandran-quantization-of-dynamics-in-quasi-periodically-driven-systems/
CATEGORIES:CM Seminar
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221019T183000
DTEND;TZID=America/Vancouver:20221019T193000
DTSTAMP:20221012T174104Z
CREATED:20221012T174104Z
LAST-MODIFIED:20221012T174104Z
UID:4978-1666204200-1666207800@qmi.miffanytark.com
SUMMARY:Unboxing Quantum: Spooky Action
DESCRIPTION:Spooky Action at a Distance\nQuantum Entanglement and Spooky Action won the Nobel Prize in physics this year. Once considered a boogieman in physicists’ closets\, quantum entanglement is one of the weirdest\, most unintuitive phenomena in the natural world. Dubbed “spooky action at a distance” by Einstein himself\, this quantum behavior puzzled scientists for years before we could demonstrate it experimentally. In this talk\, you will hear about the fascinating science behind entanglement in a fun\, interactive\, and accessible way! \n  \n\n\nSpeaker Bio\nElla is the Quantum Computing Outreach Coordinator at UBC Geering Up Engineering Outreach\, where she focuses on lowering barriers for youth to engage with STEM. Her program involves making quantum computing a more accessible topic for learners of all ages through summer camps\, workshops\, local events and more. Ella has a Bachelor’s Degree in Astronomy from UBC’s Physics and Astronomy Department. She is a big fan of all things Halloween\, particularly when there is a way to make it overlap with science. \n\n\nRSVP Here: https://www.eventbrite.ca/e/unboxing-quantum-spooky-action-tickets-416733841137 \nUnboxing Quantum page: https://qmi.miffanytark.com/programs/unboxing-quantum/
URL:https://qmi.miffanytark.com/event/unboxing-quantum-spooky-action/
CATEGORIES:Public,Unboxing Quantum
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BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221026T120000
DTEND;TZID=America/Vancouver:20221026T150000
DTSTAMP:20221013T230427Z
CREATED:20221013T230427Z
LAST-MODIFIED:20221013T230427Z
UID:4985-1666785600-1666796400@qmi.miffanytark.com
SUMMARY:Experience the World’s Fastest Visible and Thermal Cameras
DESCRIPTION:Program\n12:00 PM: Seminar \n1:00 – 3:00 PM: Live Demos & Pizza \nLocation: Brimacombe 311 \nOverview\nThis showcase will provide an overview of High Speed & Thermal Imaging\, with an introduction to the factors that need to be considered for a successful set up and highlight latest advances. The presentation will discuss the different sensor architectures and how those impact the results. It will cover everything from 65.4 MP at 70 fps to 1 billion fps at 1MP visible cameras and thermal/infrared sensors. This will include the differences between CCD vs. CMOS vs. Thermal ROIC sensors and how these architectures affect the maximum frame rates and record times. New developments such as Correlated Double Sampling\, binning and Back Side Illuminated sensors for CMOS will be explained. RAM vs Solid State vs “On Sensor” high speed memory pros and cons will be described. Cutting edge cameras will be on hand\, so you can experience what is possible with the most recent technology. The presentation will be followed by a Q&A and live demos. \nSpeaker Bio\nNathaniel Kajumba has an MSci in Physics and a Ph.D. (2003-2007) in laser physics from Imperial College London and over 19 years of experience with lasers\, optics and research grade scientific instrumentation. He was a Research Associate at the National Research Council of Canada (NRC) from 2007-2010 in the Attosecond group of Paul Corkum\, and the Deputy Head of the Free Electron Laser Research Group at the Ludwig Maximilian University & Max-Plank Institute for Quantum Optics in Munich\, Germany (2010-2014). During this time he operated the ATLAS laser system in Munich\, Germany and the Gemini Laser Facility\, Rutherford Appleton Laboratory\, UK\, two of the worlds most powerful ultra fast lasers. On returning to Canada in 2014 he joined the team at Delta Photonics to leverage his experience to serve the Canadian Photonics community. Over the past eight years he has specialized in high-speed cameras and related technology. Nathaniel is located in the Vancouver sales office and covers western Canada.
URL:https://qmi.miffanytark.com/event/experience-the-worlds-fastest-visible-and-thermal-cameras/
CATEGORIES:Other seminars
ORGANIZER;CN="AMPEL":MAILTO:ampel-sec@apsc.ubc.ca
END:VEVENT
BEGIN:VEVENT
DTSTART;TZID=America/Vancouver:20221027T100000
DTEND;TZID=America/Vancouver:20221027T110000
DTSTAMP:20221011T184651Z
CREATED:20221011T184651Z
LAST-MODIFIED:20221011T184651Z
UID:4968-1666864800-1666868400@qmi.miffanytark.com
SUMMARY:CM Seminar: Zac Ward - Disorder as an Order Parameter
DESCRIPTION:Zac Ward – Oak Ridge National Laboratory \nTitel: Disorder as an Order Parameter \nAbstract: The way that materials behave can simply be thought of as a response to what the electrons in the material are doing. Controlling the atoms’ arrangement to one another in a crystal lattice changes where the electrons reside and how they interact with one another. If we can continuously control atomic compositions and structural relationships between the constituent elements\, we can then manipulate functionality with unprecedented precision. In this presentation\, I will describe our efforts to open previously inaccessible lattice symmetries and compositional phase spaces in strongly correlated quantum materials by means of light ion implantation and entropy-assisted synthesis. I will provide examples from our recent works that demonstrates how continuous control of symmetry opens new avenues to manipulate magnetic anisotropy and how compositional complexity can be used to design dynamic spin frustration by tailoring local degeneracies. We will close with a discussion of how shifting local variances in spin and exchange coupling types while maintaining position symmetries provides exciting opportunities for designing novel Griffiths phases or quantum many-body systems with tunable critical behaviors. \nBio: Zac Ward is a Senior Scientist in the Quantum Heterostructures Group at Oak Ridge National Laboratory. His research is directed at understanding and controlling electronic interactions in novel materials aimed at identifying transformative information and energy technologies of pressing economic and environmental need. Underpinning this effort is expertise in 1) single crystal film synthesis using pulsed laser deposition and light element ion implantation to tailor spin\, charge\, and orbital degrees of freedom; and 2) structural and functional characterization using labscale x-ray diffraction\, magnetometry\, transport characterization\, and beamline-based x-ray spectroscopy and neutron reflectometry. \n 
URL:https://qmi.miffanytark.com/event/cm-seminar-zac-ward-disorder-as-an-order-parameter/
ORGANIZER;CN="Lada Synkova":MAILTO:lada.synkova@ubc.ca
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