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Multiple-copy distillation and purification of phase-diffused squeezed states

MPS-Authors
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Hage,  Boris
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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DiGuglielmo,  James
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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Schnabel,  Roman
Laser Interferometry & Gravitational Wave Astronomy, AEI-Hannover, MPI for Gravitational Physics, Max Planck Society;

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pra76_053820.pdf
(Publisher version), 362KB

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Citation

Marek, P., Fiurasek, J., Hage, B., Franzen, A., DiGuglielmo, J., & Schnabel, R. (2007). Multiple-copy distillation and purification of phase-diffused squeezed states. Physical Review A, 76(5): 053820. doi:10.1103/PhysRevA.76.053820.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0013-479A-E
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 semianalytical expression for the asymptotic limit of the iterative distillation and purification protocol and discuss its properties.