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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:20240404T100000
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DTSTAMP:20240403T183148Z
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SUMMARY:CM Seminar: Fiona Burnell – University of Minnesota: Stabilizing topologically non-trivial steady states with local dynamics in open quantum systems
DESCRIPTION:Fiona Burnell – University of Minnesota\nTitle: Electrons in twisted layers: design\, surprise\, and a new set of eyes \nAbstract: The goal of building a quantum computer has lead to rapid advances in experiments that allow for high-precision dynamical control of quantum systems at the single qubit level.  However\, a major challenge in harnessing the power of these devices is in understanding how best to control noise.  In particular\, many interesting phases of matter\, including topological phases\, that exist in closed quantum systems are not stable at finite temperature\, suggesting that they are particularly sensitive to the kinds of open-system noise present in such devices.  Quantum error correction protocols can be used to rectify this\, but these involve non-local processes.  In this talk\, I will explore approaches to stabilizing symmetry-protected topological order at arbitrarily long times in 1 dimension using local open-system dynamics.  I will show that this can be done when the noise is of a particular type relevant to Rydberg atom arrays\, known as biased erasure noise\, and comment on the implications of these results for possible steady-state phases of open quantum systems. \nSpeaker Bio: Fiona Burnell is a UBC alumnae and an associate professor at the University of Minnesota.  Her research interests include understanding how topology and symmetry dictate the possible phases of matter that can be found in nature\,  studying how and when quantum dynamics can result in systems evading their naive thermal equilibrium\, and contemplating experiments that can reveal patterns of quantum entanglement in many-body systems.
URL:https://qmi.miffanytark.com/event/cm-seminar-fiona-burnell-university-of-minnesota-stabilizing-topologically-non-trivial-steady-states-with-local-dynamics-in-open-quantum-systems/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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DTSTART;TZID=America/Vancouver:20240410T140000
DTEND;TZID=America/Vancouver:20240410T150000
DTSTAMP:20240405T180932Z
CREATED:20240405T180932Z
LAST-MODIFIED:20240405T180932Z
UID:7287-1712757600-1712761200@qmi.miffanytark.com
SUMMARY:CM Seminar: Domenico Giuliano – Department of Physics\, Università della Calabria\, Italy: Dissipation driven dynamical topological phase transitions in two-dimensional superconductors
DESCRIPTION:Domenico Giuliano – Department of Physics\, Università della Calabria\, Italy\nTitle: Dissipation driven dynamical topological phase transitions in two-dimensional superconductors \nAbstract: By quenching the interaction strength\, we induce and study a topological dynamical phase transition between superconducting phases of a planar fermionic model. Using the Lindblad Master Equation approach to account for the interactions of Bogoliubov quasiparticles among themselves and with the fluctuations of the superconducting order parameter\, we derive the corresponding relaxation dynamics of the order parameter. To fully characterize the phase transition\, we also compute the fidelity and the spin-Hall conductance of the system. Our approach provides us crucial informations for experimental implementations\, such as the dependence of the critical time on the system-bath coupling. \nSpeaker Bio: Domenico Giuliano has received his Ph. D. in 1998 from the Università di Napoli (Naples University) “Federico II” – Italy. During his Ph. D. he has spent six months at Stanford University\, under the supervision of Prof. Robert Laughlin. After graduating\, he moved back to Stanford\, on a two-year post-doc appointment\, supervised again by Prof. Laughlin. After that\, he has spent  two more years in Napoli as a post-doc research associate under the supervision of Prof. Arturo Tagliacozzo\, in 2003 he has become a university researcher at the University of Calabria\, in Soutern Italy. From year 2020 he is an associate professor of theorical physics at the same university. In the past\, he has been visiting several times the department of Physics at the University of British Coumbia\, on a long-lasting scientific collaboration with Prof. Ian Affleck and his group.  Domenico’s main research interest are in theoretical condensed matter. They include: Fractionalization of quantum number and fractional statistics; Low-dimensional correlated system\, including one-dimensional Luttinger liquids; Topological insulators and topological superconductors; Kondo effect and its applications; Quantum phase transitions.
URL:https://qmi.miffanytark.com/event/cm-seminar-domenico-giuliano-department-of-physics-universita-della-calabria-italy-dissipation-driven-dynamical-topological-phase-transitions-in-two-dimensional-superconductors/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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DTSTART;TZID=America/Vancouver:20240413T110000
DTEND;TZID=America/Vancouver:20240413T140000
DTSTAMP:20240328T204628Z
CREATED:20240328T204628Z
LAST-MODIFIED:20240328T204628Z
UID:7255-1713006000-1713016800@qmi.miffanytark.com
SUMMARY:World Quantum Family and Friends Day
DESCRIPTION:We are happy to organize Friends and Family Day at the Blusson Quantum Matter Institute. \nThis is a celebration of the QMI Community and World Quantum Day. \nPlease register here. \nLab Tours\nThe following labs will be open to the public. Volunteers will give brief explanations of each lab:\n• The Scanning Tunneling Microscopy Lab\n• The Ultrafast Spectroscopy Lab\n• The Quantum Materials Lab\n• The 2D Materials Lab\n• The Photonics & Nanostructures Lab\n• The Angle-Resolved Photoemission Spectroscopy Lab \nSuperconductor Track\nOur famous superconductor track will be on display throughout the event\, run by the one and\nonly James Day. \nAstronomy Station\nStop by a cosmic experience run by Jess McIver. \nRefreshments and Ice Cream\nCoffee will be available in the morning. Ice cream for the event will be hosted by Mona Berciu! \nMerch\nKids will receive QMI stickers and buttons. \nFun Passport\nKids (and adults?) will be provided with an event passport to explore the building and express their artistic skills. \nSocialize\nThe event is a great opportunity to socialize with the QMI community. Mingle with other QMI\nparents and friends in the lobby area\, while exploring the building\, or at the rest areas.
URL:https://qmi.miffanytark.com/event/world-quantum-family-and-friends-day/
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DTSTART;TZID=America/Vancouver:20240418T100000
DTEND;TZID=America/Vancouver:20240418T110000
DTSTAMP:20240404T042427Z
CREATED:20240404T042427Z
LAST-MODIFIED:20240404T042427Z
UID:7281-1713434400-1713438000@qmi.miffanytark.com
SUMMARY:CM Seminar: Michael Zaletel – University of California Berkley: Anomalous Hall Crystals in Graphene: interaction-driven Chern bands at zero magnetic field
DESCRIPTION:Michael Zaletel – University of California Berkley\nTitle: Anomalous Hall Crystals in Graphene: interaction-driven Chern bands at zero magnetic field \nAbstract: Recent experiments have discovered that pentalayer-graphene subject to a moire superlattice spontaneously breaks time-reversal\, resulting in a quantized anomalous Hall effect at zero magnetic field. At fractional filling\, the material exhibits a zero-field fractional quantum Hall effect. In contrast to other moire-materials\, the origin of Chern bands in this material is not so clear. I will present a theoretical picture in which Chern bands arise from an “anomalous Hall crystal” stabilized primarily by interactions.  So far this picture is supported mainly by mean-field calculations\, so I’ll conclude with some open questions about how the Hall crystal could be verified.   \nSpeaker Bio: Michael Zaletel is an Associate Professor of Physics and the\nAllison and Thomas Schneider Chair at UC Berkley.
URL:https://qmi.miffanytark.com/event/cm-seminar-michael-zaletel-university-of-california-berkley-anomalous-hall-crystals-in-graphene-interaction-driven-chern-bands-at-zero-magnetic-field/
ORGANIZER;CN="Aditi Adhikari":MAILTO:aditi.adhikari@ubc.ca
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