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Non-classicalities via perturbing local unitary operations

机译:通过扰乱当地单一行动的非经典

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摘要

We study the nonclassical correlations in a two-qubit state by the perturbing local unitary operation method. We find that the definitions of various non-classicalities including quantum discord (QD), measurement-induced nonlocality (MIN) and so on usually do not have a unique definition when expressed as the perturbation of local unitary operations, so a given non-classicality can lead to different definitions of its dual non-classicality. In addition, it is shown that QD and MIN are not the corresponding dual expressions in a simple set of unitary operations, even though they are in their original definitions. In addition, we also consider the non-classicalities in general 2 ⊗ d dimensional systems.
机译:我们通过扰动局部unit运算方法研究了两个量子位状态下的非经典相关性。我们发现,当表达为局部unit运算的扰动时,包括量子失调(QD),测量引起的非局部性(MIN)等各种非经典性的定义通常没有唯一的定义,因此给定的非经典性可能导致对其双重非经典性的不同定义。此外,它表明QD和MIN不是简单的of运算集中相应的对偶表达式,即使它们在其原始定义中也是如此。另外,我们还考虑了一般二维系统中的非经典性。

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  • 来源
    《The European Physical Journal D》 |2013年第10期|1-8|共8页
  • 作者单位

    School of Physics and Optoelectronic Technology Dalian University of Technology">(1);

    School of Physics and Optoelectronic Technology Dalian University of Technology">(1);

    School of Physics and Optoelectronic Technology Dalian University of Technology">(1);

    School of Physics and Optoelectronic Technology Dalian University of Technology">(1);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Quantum Information;

    机译:量子信息;

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