Continuous-variable Bell-type correlations from two bright squeezed beams
Elanor H. Huntington, Timothy C. Ralph · Physical Review A · 2001
In this paper we propose two surprisingly simple optical systems that display Bell-type correlations between the continuous variables of their subsystems. We first discuss how these two systems may be used to construct Bell-type correlations from two bright, amplitude-squeezed sources. Then the experimental viability of these systems is analyzed. Issues such as the conditions under which the systems display Bell correlations, sources of nontechnical as well as technical noise, signal-to-noise ratio and losses are discussed. Based on this discussion, we conclude that both of these systems are currently experimentally viable.