Multiple copy distillation and purification of phase diffused squeezed states
arXiv:0708.1395 · doi:10.1103/PhysRevA.76.053820
Abstract
We provide a detailed theoretical analysis of multiple copy purification and distillation protocols for phase diffused squeezed states of light. The standard iterative distillation protocol is generalized to a collective purification of an arbitrary number of N copies. We also derive a semi-analytical expression for the asymptotic limit of the iterative distillation and purification protocol and discuss its properties.
11 pages, 13 figures
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