Entanglement dynamics for two interacting spins

Details Entanglement dynamics for two interacting spins Entanglement dynamics for two interacting spins

2005-10-20

arxiv.org/abs/quant-ph/0510162v1

Ann. Phys. 318, 308 (2005)

Physics

Quantum Physics

8 pages, 6 figures

Scientific paper

10.1016/j.aop.2005.01.003

We study the dynamical generation of entanglement for a very simple system: a pair of interacting spins, s1 and s2, in a constant magnetic field. Two different situations are considered:(a) s1 ->\infty, s2 = 1/2 and (b) s1 = s2 ->\infty, corresponding, respectively, to a quantum degree of freedom coupled to a semiclassical one (a qubit in contact with an environment) and a fully semiclassical system, which in this case displays chaotic behavior. Relations between quantum entanglement and classical dynamics are investigated.

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