Proposed Test of Quantum Nonlocality for Continuous Variables

Hyunchul Nha, H. J. Carmichael

Published 2004-06-15, updated 2004-07-08Version 3

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 $r\approx0.48$.