Paper Publications

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Journal:Phys. Rev. Res

Abstract:The ongoing quest for understanding nonequilibrium dynamics of complex quantum systems underpins the foundation of statistical physics as well as the development of quantum technology. Quantum many-body scarring has recently opened a window into novel mechanisms for delaying the onset of thermalization by preparing the system in special initial states, such as the Z2 state in a Rydberg atom system. Here we realize many-body scarring in a Bose-Hubbard quantum simulator from previously unknown initial conditions such as the unit-filling state. We develop a quantum-interference protocol for measuring the entanglement entropy and demonstrate that scarring traps the many-body system in a low-entropy subspace. Our work makes the resource of scarring accessible to a broad class of ultracold-atom experiments, and it allows one to explore the relation of scarring to constrained dynamics in lattice gauge theories, Hilbert space fragmentation, and disorder-free localization.

Co-author:Guo-Xian Su et al.

Indexed by:Journal paper

Discipline:Natural Science

Document Type:J

Volume:5

Issue:2

Page Number:023010

Translation or Not:no

Date of Publication:2023-04-05

Included Journals:SCI

Links to published journals:https://journals.aps.org/prresearch/abstract/10.1103/PhysRevResearch.5.023010