Silvia Pappalardi (Author), Angelo Russomanno (Author), Bojan Žunkovič (Author), Fernando Iemini (Author), Alessandro Silva (Author), Rosario Fazio (Author)

Abstract

We study scrambling in connection with multipartite entanglement dynamics in regular and chaotic long-range spin chains, characterized by a well-defined semi-classical limit. For regular dynamics, scrambling and entanglement dynamics are found to be very different: up to the Ehrenfest time, they rise side by side, departing only afterward. Entanglement saturates and becomes extensively multipartite, while scrambling, characterized by the dynamic of the square commutator of initially commuting variables, continues its growth up to the recurrence time. Remarkably, the exponential growth of the latter emerges not only in the chaotic case but also in the regular one, when the dynamics occurs at a dynamical critical point.

Keywords

kvantna statistična mehanika;kvantna mehanika;kvantna prepletenost;quantum statistical mechanics;quantum mechanics;quantum entanglement;

Data

Language: English
Year of publishing:
Typology: 1.01 - Original Scientific Article
Organization: UL FMF - Faculty of Mathematics and Physics
UDC: 536.93
COBISS: 3264100 Link will open in a new window
ISSN: 2469-9950
Views: 583
Downloads: 523
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Other data

Secondary language: Slovenian
Secondary keywords: kvantna statistična mehanika;kvantna mehanika;kvantna prepletenost;
Pages: str. 134303-1-134303-11
Volume: ǂVol. ǂ98
Issue: ǂiss. ǂ13
Chronology: 2018
DOI: 10.1103/PhysRevB.98.134303
ID: 10983605