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arXiv quant-ph/0110114quant-phcond-mat
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玻色-爱因斯坦凝聚体中的自然纠缠

Natural Entanglement in Bose-Einstein Condensates

Christoph Simon

摘要:

每一个玻色-爱因斯坦凝聚体都处于高度纠缠状态,这是因为凝聚体中的粒子以相干的方式分布在空间中。证明了有限粒子数凝聚体中的任意两个区域是纠缠的。这种纠缠不依赖于两个区域之间的距离。纠缠的存在的标准来自干涉实验的背景下。对于可分离的状态,粒子数的波动和干涉可见性之间存在权衡。

英文摘要:

Every Bose-Einstein condensate is in a highly entangled state, as a consequence of the fact that the particles in a condensate are distributed over space in a coherent way. It is proved that any two regions within a condensate of finite particle number are entangled. This entanglement does not depend on the distance between the two regions. Criteria for the presence of entanglement are derived in the context of interference experiments. For separable states there is a trade-off between fluctuations in particle number and interference visibility.

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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