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X-ORIGINAL-URL:https://iqus.uw.edu/
X-WR-CALNAME:IQuS
X-WR-CALDESC:InQubator for Quantum Simulation
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BEGIN:VEVENT
CLASS:PUBLIC
UID:MEC-42d6c7d61481d1c21bd1635f59edae05@iqus.uw.edu
DTSTART:20221122T213000Z
DTEND:20221122T223000Z
DTSTAMP:20221114T210900Z
CREATED:20221114
LAST-MODIFIED:20221114
PRIORITY:5
SEQUENCE:0
TRANSP:OPAQUE
SUMMARY:UW-PHYSICS-QIS : Deep Gupta
DESCRIPTION:Momentum Space Quantum Simulation: Many-body Dynamics of a Kicked Quantum Gas\n\n\n\nAbstract: The synthetic dimension of momentum space can be utilized for quantum simulation with ultracold neutral atoms, \nwhere lattice sites are coupled through multi-photon optical transitions with controlled on-site energies and inter-site tunneling. \nThis platform offers technical advantages over its position-space counterpart e.g. ease of detection and ease of varying dimension number, \nwhile also altering the form of inter-atomic interactions. We will discuss our observation of interaction-driven breakdown \nof dynamical localization (momentum space equivalent of Anderson localization) in a 1D ultracold bosonic gas periodically kicked \nby an optical lattice [1]. The observed dynamics indicates the onset of many-body quantum chaos and features sub-diffusive energy growth. \nIn synthetic dimensions d > 2, the system is a simulator for the Anderson metal-insulator transition, and we will also discuss \nour observations of many-body delocalization in the corresponding insulator phase. These results shed light on interaction-driven \ntransport phenomena in quantum many-body systems, in a regime where theoretical approaches can be challenging.\n\n[1] J. See Toh et al. Many-body dynamical delocalization in a kicked one-dimensional ultracold gas. Nat. Phys. 18, 1297 (2022).\n
URL:https://iqus.uw.edu/events/uw-physics-qis-deep-gupta/
CATEGORIES:Seminars
LOCATION:C421 Physics and Astronomy Building
ATTACH;FMTTYPE=image/jpeg:https://iqus.uw.edu/wp-content/uploads/2022/11/DeepGupta.jpg
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