Violation of Bell's inequality using classical measurements and non-linear local operations

Details Violation of Bell's inequality using classical measurements and non-linear local operations Violation of Bell's inequality using classical measurements and non-linear local operations

2007-02-16

arxiv.org/abs/quant-ph/0702165v2

Phys. Rev. A 75, 052105 (2007)

Physics

Quantum Physics

6 pages, 5 figures, to be published in Phys. Rev. A

Scientific paper

10.1103/PhysRevA.75.052105

We find that Bell's inequality can be significantly violated (up to Tsirelson's bound) with two-mode entangled coherent states using only homodyne measurements. This requires Kerr nonlinear interactions for local operations on the entangled coherent states. Our example is a demonstration of Bell-inequality violations using classical measurements. We conclude that entangled coherent states with coherent amplitudes as small as 0.842 are sufficient to produce such violations.

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