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Entanglement Dynamics and Classical Complexity

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Title
Entanglement Dynamics and Classical Complexity
Author(s)
Wang, Jiaozi; Barbara Dietz; Dario Rosa; Benenti, Giuliano
Publication Date
2023-01
Journal
ENTROPY, v.25, no.1
Publisher
MDPI
Abstract
We study the dynamical generation of entanglement for a two-body interacting system, starting from a separable coherent state. We show analytically that in the quasiclassical regime the entanglement growth rate can be simply computed by means of the underlying classical dynamics. Furthermore, this rate is given by the Kolmogorov-Sinai entropy, which characterizes the dynamical complexity of classical motion. Our results, illustrated by numerical simulations on a model of coupled rotators, establish in the quasiclassical regime a link between the generation of entanglement, a purely quantum phenomenon, and classical complexity.
URI
https://pr.ibs.re.kr/handle/8788114/13150
DOI
10.3390/e25010097
ISSN
1099-4300
Appears in Collections:
Center for Theoretical Physics of Complex Systems(복잡계 이론물리 연구단) > 1. Journal Papers (저널논문)
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