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Published on: June 15, 2018
Entanglement Dynamics and Classical Complexity
Jiaozi Wang1, Barbara Dietz2, Dario Rosa2,3
1Department of Physics, University of Osnabrück, D-49069 Osnabrück, Germany.
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.
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