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arXiv 1502.04807quant-ph
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纠缠负性的多项式单偶关系

Polynomial Monogamy Relations for Entanglement Negativity

Grant W. Allen, David A. Meyer

摘要:

非经典关联的概念是解释量子系统中所呈现的现象的一个强有力的发明。然而,众所周知,量子系统并不能自由地探索任意的相关性--较小希尔伯特空间的教堂只接受一夫一妻制的教徒。我们演示了如何用可计算的度量,纠缠负性来描述量子力学可能的极限。证明了在LOCC条件下,标准线性一夫一妻制不等式的单调性所隐含的平凡情形下,负性仅使其饱和,并导出了一个充分必要的不等式,该不等式第一次是一个非线性高次多项式.对于非常大的量子系统,我们证明了负性可以至少线性分布的最严格的约束和猜测,它是最线性的。

英文摘要:

The notion of non-classical correlations is a powerful contrivance for explaining phenomena exhibited in quantum systems. It is well known, however, that quantum systems are not free to explore arbitrary correlations---the church of the smaller Hilbert space only accepts monogamous congregants. We demonstrate how to characterize the limits of what is quantum mechanically possible with a computable measure, entanglement negativity. We show that negativity only saturates the standard linear monogamy inequality in trivial cases implied by its monotonicity under LOCC, and derive a necessary and sufficient inequality which, for the first time, is a non-linear higher degree polynomial. For very large quantum systems, we prove that the negativity can be distributed at least linearly for the tightest constraint and conjecture that it is at most linear.

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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