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Reversible quantum information spreading in many-body systems near criticality

URN to cite this document:
urn:nbn:de:bvb:355-epub-382203
DOI to cite this document:
10.5283/epub.38220
Hummel, Quirin ; Geiger, Benjamin ; Urbina, Juan Diego ; Richter, Klaus
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arXiv PDF (21.12.2018)
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Date of publication of this fulltext: 22 Jan 2019 13:01



Abstract

Quantum chaotic interacting N-particle systems are assumed to show fast and irreversible spreading of quantum information on short (Ehrenfest) time scales ∼logN. Here we show that, near criticality, certain many-body systems exhibit fast initial scrambling, followed subsequently by oscillatory behavior between reentrant localization and delocalization of information in Hilbert space. ...

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