One-way EPR steering and genuine multipartite EPR steering

摘要

We propose criteria and experimental strategies to realise the Einstein-Podolsky-Rosen (EPR) steering nonlo-cality. One-way steering can be obtained where there is asymmetry of thermal noise on each system. We also present EPR steering inequalities that act as signatures and suggest how to optimise EPR correlations in specific schemes so that the genuine multipartite EPR steering nonlocality (EPR paradox) can also possibly be realised. The results presented here also apply to the spatially separated macroscopic atomic ensembles.