边缘状态的见证及其特征
Witness for edge states and its characteristics
摘要：
位于PPT纠缠态边缘的边缘态是一种非常有趣的存在，它们的探测也同样有趣。我们在这里提出了一个新的证人边缘状态的检测。然后，我们比较了我们提出的见证算子和[Physical Review A，62，052310（2000）]中提出的见证算子在检测PPT纠缠态方面的效率。在这方面，我们表明，该算子是精细比Lewenstein等人。运营商在某些限制。我们还讨论了它的实验实现通过盖尔曼矩阵。
英文摘要：
Edge states lying at the edge of PPT entangled states have a very intriguing existence and their detection is equally interesting. We present here a new witness for detection of edge states. We then compare between our proposed witness operator and the witness operator proposed in [Physical Review A, 62, 052310 (2000)] in terms of the efficiency in the detection of PPT entangled states. In this regard we show that this operator is finer than the Lewenstein et.al. operator in some restriction. We also discuss about its experimental realization via Gell-Mann matrices.
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