Proposed Test of Quantum Nonlocality for Continuous Variables

Abstract

We propose a test of nonlocality for continuous variables using a two-mode squeezed state as the source of nonlocal correlations and a measurement scheme based on conditional homodyne detection. Both the CHSH- and the CH-inequality are constructed from the conditional homodyne data and found to be violated for a squeezing parameter larger than $r\approx0.48$.

published version, typo corrected for the equation in the text before Eq.(11)