Degaussification of twin-beam and nonlocality in the phase space

Details Degaussification of twin-beam and nonlocality in the phase space Degaussification of twin-beam and nonlocality in the phase space

2004-06-04

arxiv.org/abs/quant-ph/0406030v1

Phys. Rev. A Vol. 70, 032112 (2004)

Physics

Quantum Physics

7 pages, 6 figures

Scientific paper

10.1103/PhysRevA.70.032112

We show that inconclusive photon subtraction (IPS) on twin-beam produces
non-Gaussian states that violate Bell's inequality in the phase-space. The
violation is larger than for the twin-beam itself irrespective of the IPS
quantum efficiency. The explicit expression of IPS map is given both for the
density matrix and the Wigner function representations.

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