Physical implementation for entanglement purification of Gaussian continuous variable quantum states

Details Physical implementation for entanglement purification of Gaussian continuous variable quantum states Physical implementation for entanglement purification of Gaussian continuous variable quantum states

2000-03-24

arxiv.org/abs/quant-ph/0003116v2

Phys. Rev. A 62, 032304 (2000)

Physics

Quantum Physics

12 pages, 6 figures, final version

Scientific paper

10.1103/PhysRevA.62.032304

We give a detailed description of the entanglement purification protocol which generates maximally entangled states with high efficiencies from realistic Gaussian continuous variable entangled states. The physical implementation of this protocol is extensively analyzed using high finesse cavities and cavity enhanced cross Kerr nonlinearities. In particular, we take into account many imperfections in the experimental scheme and calculate their influences. Quantitative requirements are given for the relevant experimental parameters.

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