Saturation of the production of quantum entanglement between weakly coupled mapping systems in a strongly chaotic region

Phys Rev E Stat Nonlin Soft Matter Phys. 2002 Oct;66(4 Pt 2):045201. doi: 10.1103/PhysRevE.66.045201. Epub 2002 Oct 10.

Abstract

The production of quantum entanglement between weakly coupled mapping systems, whose classical counterparts are both strongly chaotic, is investigated. In the weak-coupling regime, it is shown that time-correlation functions of the unperturbed systems determine the entanglement production. In particular, we elucidate that the increment of the nonlinear parameter of coupled kicked tops does not accelerate the entanglement production in the strongly chaotic region. An approach to the dynamical inhibition of entanglement is suggested.