Asymmetric Gaussian steering: When Alice and Bob disagree
Asymmetric Gaussian steering: When Alice and Bob disagree
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DOI：
10.1103/physreva.81.022101
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发表时间：
2009-06
影响因子：
2.9
通讯作者：
S. Midgley;A. Ferris;M. Olsen
中科院分区：
文献类型：
--
作者：
S. Midgley;A. Ferris;M. Olsen
不对称转向是一种效应，即一个不可分割的二部系统可以被量子力学或局部隐变量理论描述，这取决于Alice或Bob中的哪一个进行了所需的测量。我们证明，即使是不可分割的二部系统，也可能出现在其中一半的高斯测量不足以回答哪个理论给出了充分描述并且必须考虑整个系统的基本问题的情况。这种现象是可能的，因为在最初的爱因斯坦-波多尔斯基-罗森悖论的定义不对称，在这篇文章中，我们从理论上表明，它可能被证明，至少在情况下，爱丽丝和鲍勃只能进行高斯测量，使用腔内非线性耦合器。©2010美国物理学会
Asymmetric steering is an effect whereby an inseparable bipartite system can be found to be described by either quantum mechanics or local hidden variable theories depending on which one of Alice or Bob makes the required measurements. We show that, even with an inseparable bipartite system, situations can arise where Gaussian measurements on one half are not sufficient to answer the fundamental question of which theory gives an adequate description and the whole system must be considered. This phenomenon is possible because of an asymmetry in the definition of the original Einstein-Podolsky-Rosen paradox and in this article we show theoretically that it may be demonstrated, at least in the case where Alice and Bob can only make Gaussian measurements, using the intracavity nonlinear coupler. © 2010 The American Physical Society