On the distillation and purification of phase-diffused squeezed states

Details On the distillation and purification of phase-diffused squeezed states On the distillation and purification of phase-diffused squeezed states

2007-07-13

arxiv.org/abs/0707.1935v2

New J. Phys. 9 (2007) 227

Physics

Quantum Physics

Scientific paper

10.1088/1367-2630/9/7/227

Recently it was discovered that non-Gaussian decoherence processes, such as phase-diffusion, can be counteracted by purification and distillation protocols that are solely built on Gaussian operations. Here, we make use of this experimentally highly accessible regime, and provide a detailed experimental and theoretical analysis of several strategies for purification/distillation protocols on phase-diffused squeezed states. Our results provide valuable information for the optimization of such protocols with respect to the choice of the trigger quadrature, the trigger threshold value and the probability of generating a distilled state.

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