控制外量子场中纠缠的产生

Journal of optics. B, Quantum and semiclassical optics : journal of the European Optical Society Pub Date : 2005-08-19 DOI:10.1088/1464-4266/7/10/033

F. Benatti, F. Benatti, R. Floreanini, R. Floreanini

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引用次数: 61

摘要

两个不相互作用的两能级原子浸泡在一个共同的浴池中，当以完全正的马尔可夫动态进化时，可能会相互纠缠。对于由外部量子场构成的环境，可以详细研究这种现象:人们发现纠缠的产生可以通过改变镀液温度和原子之间的距离来控制。值得注意的是，在某些情况下，量子相关可以在渐近长时间状态下持续存在。

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Controlling entanglement generation in external quantum fields

Two non-interacting two-level atoms immersed in a common bath can become mutually entangled when evolving with a Markovian, completely positive dynamics. For an environment made of external quantum fields, this phenomenon can be studied in detail: one finds that entanglement production can be controlled by varying the bath temperature and the distance between the atoms. Remarkably, in certain circumstances, the quantum correlations can persist in the asymptotic long-time regime.

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Journal of optics. B, Quantum and semiclassical optics : journal of the European Optical Society

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