Proposal for Realizing Quantum Scars in the Tilted 1D Fermi-Hubbard Model

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dc.citation.issue21
dc.citation.rankM21a
dc.citation.spage210601
dc.citation.volume126
dc.contributor.authorDesaules, Jean-Yves
dc.contributor.authorHudomal, Ana
dc.contributor.authorTurner, Christopher
dc.contributor.authorPapić, Zlatko
dc.date.accessioned2024-06-14T08:47:18Z
dc.date.available2024-06-14T08:47:18Z
dc.date.issued2021-05-24
dc.description.abstractMotivated by recent observations of ergodicity breaking due to Hilbert space fragmentation in 1D Fermi-Hubbard chains with a tilted potential [Scherg et al., arXiv:2010.12965], we show that the same system also hosts quantum many-body scars in a regime U≈Δ≫J at electronic filling factor ν=1. We numerically demonstrate that the scarring phenomenology in this model is similar to other known realizations such as Rydberg atom chains, including persistent dynamical revivals and ergodicity-breaking many-body eigenstates. At the same time, we show that the mechanism of scarring in the Fermi-Hubbard model is different from other examples in the literature: the scars originate from a subgraph, representing a free spin-1 paramagnet, which is weakly connected to the rest of the Hamiltonian's adjacency graph. Our work demonstrates that correlated fermions in tilted optical lattices provide a platform for understanding the interplay of many-body scarring and other forms of ergodicity breaking, such as localization and Hilbert space fragmentation.
dc.identifier.doi10.1103/physrevlett.126.210601
dc.identifier.issn0031-9007
dc.identifier.issn1079-7114
dc.identifier.scopus2-s2.0-85107122167
dc.identifier.urihttps://pub.ipb.ac.rs/handle/123456789/94
dc.identifier.wos000655929700003
dc.language.isoen
dc.publisherAmerican Physical Society (APS)
dc.relation.ispartofPhysical Review Letters
dc.relation.ispartofabbrPhys. Rev. Lett.
dc.rightsrestrictedAccess
dc.titleProposal for Realizing Quantum Scars in the Tilted 1D Fermi-Hubbard Model
dc.typeArticle
dc.type.versionpublishedVersion
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