Entanglement Dynamics and Classical Complexity

被引：1
|
作者：
Wang, Jiaozi [1 ]
Dietz, Barbara [2 ]
Rosa, Dario [2 ,3 ]
Benenti, Giuliano [4 ,5 ,6 ]
机构：
[1] Univ Osnabruck, Dept Phys, D-49069 Osnabruck, Germany
[2] Inst Basic Sci IBS, Ctr Theoret Phys Complex Syst, Daejeon 34126, South Korea
[3] Korea Univ Sci & Technol UST, Basic Sci Program, Daejeon 34113, South Korea
[4] Univ Insubria, Ctr Nonlinear & Complex Syst, Dipartimento Sci & Alta Tecnol, Via Valleggio 11, I-22100 Como, Italy
[5] Ist Nazl Fis Nucl, Sez Milano, Via Celoria 16, I-20133 Milan, Italy
[6] Ist Nanosci CNR, NEST, I-56126 Pisa, Italy
来源：
ENTROPY | 2023年 / 25卷 / 01期
关键词：
quantum complexity; quantum to classical transition; TIME EVOLUTION; CHAOS;
D O I：
10.3390/e25010097
中图分类号：
O4 [物理学];
学科分类号：
0702 ;
摘要：
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.
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页数：10
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