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arXiv quant-ph/0510162quant-ph
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两个相互作用自旋的纠缠动力学

Entanglement dynamics for two interacting spins

Marcel Novaes

摘要:

我们研究了一个非常简单的系统纠缠的动力学产生:一对相互作用的自旋,s1和s2,在一个恒定的磁场。考虑了两种不同的情况:(a)s1 -> \infty,s2 = 1/2和(b)s1 = s2 -> \infty,分别对应于耦合到半经典系统(与环境接触的量子比特)和完全半经典系统的量子自由度,在这种情况下,它显示出混沌行为。研究了量子纠缠与经典动力学的关系。

英文摘要:

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.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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