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arXiv quant-ph/0604050quant-ph
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基于局域不确定关系的纠缠判据严格强于可计算交叉范数判据

Entanglement criteria based on local uncertainty relations are strictly stronger than the computable cross norm criterion

Otfried Gühne, Matyas Mechler, Geza Toth, Peter Adam

摘要:

我们表明,任何违反可计算的交叉范数(或重新排列)的可分性标准的状态也违反了局部不确定关系的可分性标准。反之则不然。局域不确定性关系为交叉范数准则提供了一个简单的非线性纠缠见证构造。

英文摘要:

We show that any state which violates the computable cross norm (or realignment) criterion for separability also violates the separability criterion of the local uncertainty relations. The converse is not true. The local uncertainty relations provide a straightforward construction of nonlinear entanglement witnesses for the cross norm criterion.

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