Asymmetric Gaussian steering: When Alice and Bob disagree

摘要: Asymmetric steering is an effect whereby inseparable bipartite system can be found to described by either quantum mechanics or local hidden variable theories depending on which one of Alice Bob makes the required measurements. We show that, even with system, situations arise where Gaussian measurements half are not sufficient answer fundamental question theory gives adequate description and whole must considered. This phenomenon possible because asymmetry in definition original Einstein-Podolsky-Rosen paradox this article we theoretically that it may demonstrated, at least case only make measurements, using intracavity nonlinear coupler. © 2010 The American Physical Society