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arXiv quant-ph/0602117quant-ph
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经典混沌系统中纠缠变化的曲率相关界

A curvature dependent bound for entanglement change in classically chaotic systems

Demetris P. K. Ghikas, George Stamatiou

摘要:

利用Calogero-Moser模型和Nakamura方程,证明了临界参数变化下的平均二体纠缠变化率与能级曲率之间的一个不等式.这提供了一个上限的生产率或分心的纠缠动态诱导。然后,我们调查的依赖性的上限的程度的混乱的系统,这反过来,通过不等式,给出了一个衡量的纠缠态的稳定性。我们的分析结果得到了广泛的数值计算的支持。

英文摘要:

Using the Calogero-Moser model and the Nakamura equations for a multi-partite quantum system, we prove an inequality between the mean bi-partite entanglement rate of change under the variation of a critical parameter and the level-curvature. This provides an upper bound for the rate of production or distraction of entanglement induced dynamically. We then investigate the dependence of the upper bound on the degree of chaos of the system, which in turn, through the inequality, gives a measure of the stability of the entangled state. Our analytical results are supported with extensive numerical calculations.

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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