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arXiv 0908.1096quant-ph
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纠缠与复合玻色子

Entanglement and Composite Bosons

Christopher Chudzicki, Olufolajimi Oke, William K. Wootters

摘要:

我们建立在C. K.定律[Phys. Rev. A 71,034306(2005)],一般来说,两个费米子之间的纠缠在很大程度上决定了这对粒子表现得像基本玻色子的程度。具体来说,我们推导出上界和下界的数量,管理玻色子字符的一对费米子时,N对这样的约共享相同的波函数。我们的边界依赖于单粒子密度矩阵的纯度,这是纠缠的一个指标,并表明,如果纠缠足够强,所讨论的数量接近其理想的玻色子值。

英文摘要:

We build upon work by C. K. Law [Phys. Rev. A 71, 034306 (2005)] to show in general that the entanglement between two fermions largely determines the extent to which the pair behaves like an elementary boson. Specifically, we derive upper and lower bounds on a quantity that governs the bosonic character of a pair of fermions when N such pairs approximately share the same wavefunction. Our bounds depend on the purity of the single-particle density matrix, an indicator of entanglement, and demonstrate that if the entanglement is sufficiently strong, the quantity in question approaches its ideal bosonic value.

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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