Generating optimal states for a homodyne Bell test
arXiv:quant-ph/0504084 · doi:10.1103/PhysRevA.72.034101
Abstract
We present a protocol that produces a conditionally prepared state that can be used for a Bell test based on homodyne detection. Based on the results of Munro [PRA 1999], the state is near-optimal for Bell-inequality violations based on quadrature-phase homodyne measurements that use correlated photon-number states. The scheme utilizes the Gaussian entanglement distillation protocol of Eisert et. al. [Annals of Phys. 2004] and uses only beam splitters and photodetection to conditionally prepare a non-Gaussian state from a source of two-mode squeezed states with low squeezing parameter, permitting a loophole-free test of Bell inequalities.
5 pages, 3 figures
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Cited by in corpus (6)
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- Tomographic test of Bell's inequality for a time-delocalized single photon
- Multiphoton communication in lossy channels with photon-number entangled states
- Generating arbitrary photon-number entangled states for continuous-variable quantum informatics
- De-Gaussification by inconclusive photon subtraction