SAMOP 2023 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 22: Poster II
Q 22.23: Poster
Dienstag, 7. März 2023, 16:30–19:00, Empore Lichthof
Quantum many-body scars in a Bose-Hubbard quantum simulator — •Guoxian Su1, Jean-Yves Desaules2, Ana Hudomal2,3, Aiden Daniel2, Jad Halimeh4, Zhen-Sheng Yuan5, Jian-Wei Pan5, and Zlatko Papic2 — 1Physikalisches Institut, Ruprecht-Karls-Universität Heidelberg, Im Neuenheimer Feld 226, 69120 Heidelberg, Germany — 2School of Physics and Astronomy, University of Leeds, Leeds LS2 9JT, UK — 3Institute of Physics Belgrade, University of Belgrade, 11080 Belgrade, Serbia — 4Munich Center for Quantum Science and Technology (MCQST), Schellingstraße 4, D-80799 München, Germany — 5Hefei National Laboratory for Physical Sciences at Microscale and Department of Modern Physics, University of Science and Technology of China, Hefei, Anhui 230026, China
Quantum many-body scarring is a phenomenon where a chaotic system prepared in special initial conditions exhibits long-lived oscillations. It presents a novel mechanism for delaying the onset of thermalization. We realize many-body scars in a Bose-Hubbard quantum simulator, which hosts an abundance of scar states. We show the slowed growth of entanglement entropy in scarred dynamics. And we investigate the ubiquity of scarring and its interaction with quantum criticality. Our work makes the resource of scarring accessible to a broad class of ultracold-atom experiments and enables the study of such phenomena in fundamental physics such as lattice gauge theories.