Bulletin of the American Physical Society
54th Annual Meeting of the APS Division of Atomic, Molecular and Optical Physics
Volume 68, Number 7
Monday–Friday, June 5–9, 2023; Spokane, Washington
Session U02: New Topics in Nonequilibrium Quantum DynamicsInvited Live Streamed
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Chair: David Weld, UC Santa Barbara Room: Ballroom 111 A |
Thursday, June 8, 2023 2:00PM - 2:30PM |
U02.00001: Quantum Information Dynamics in Monitored Systems Invited Speaker: Vedika Khemani I will discuss the dynamics of monitored systems combining the ingredients of unitary evolution, measurements, and adaptive classical control. I will present various novel dynamical phases and phase transitions that arise in these systems, ranging from entanglement and teleportation phase transitions to "decodability" and "learnability" transitions in the ability to reconstruct quantum information from measurements. I will also discuss experimental realizations of these phenomena in noisy quantum processors. |
Thursday, June 8, 2023 2:30PM - 3:00PM |
U02.00002: Topology in time-evolving quantum systems Invited Speaker: Ian Spielman Topology in time-evolving quantum systems |
Thursday, June 8, 2023 3:00PM - 3:30PM |
U02.00003: Spatial partition of an atomic quantum Hall system Invited Speaker: Sylvain Nascimbene A quantum Hall system is characterized by non-trivial topological order of its underlying quantum states. While topological order cannot be accessed using local measurements, it leads to specific signatures in the structure of entanglement upon spatial partition, characterized by the entanglement spectrum. According to the Li-Haldane conjecture, the entanglement spectrum corresponds to a chiral gapless mode, mimicking the excitation spectrum of a topological edge mode. |
Thursday, June 8, 2023 3:30PM - 4:00PM |
U02.00004: Quantum simulations with optical lattices: avalanche thermalization and fractional quantum Hall states Invited Speaker: Julian Leonard Quantum simulations with optical lattices offer the unique opportunity to experimentally address outstanding problems in many-body quantum physics. Quantum gas microscopy brings this effort to the ultimate level of single particle control. I will talk about our recent work on two topics: First, I will report on the observation of quantum avalanches, which have been predicted as the leading instability of the many-body localized phase. Second, I will present our results on the realization of a fractional quantum Hall state, which we prepare through adiabatic quantum state engineering within the interacting Harper Hofstadter model. Our work gives new insights to non-equilibrium dynamics in disordered systems, and it provides a starting point for exploring other entangled topological matter with ultracold atoms. |
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