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Journal Article

Experimental Demonstration of Continuous Variable Purification of 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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PRL97_150505.pdf
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Citation

Franzen, A., Hage, B., DiGuglielmo, J., Fiurasek, J., & Schnabel, R. (2006). Experimental Demonstration of Continuous Variable Purification of Squeezed States. Pysical Review Letters, 97: 150505. doi:10.1103/PhysRevLett.97.150505.


Cite as: https://hdl.handle.net/11858/00-001M-0000-0012-9D53-E
Abstract
We report on the first experimental demonstration of purification of nonclassical continuous variable states. The protocol uses two copies of phase-diffused states overlapped on a beam splitter and provides Gaussified, less mixed states with the degree of squeezing improved. The protocol uses only linear optical devices such as beam splitters and homodyne detection, thereby proving these optical elements can be used for successful purification of this type of state decoherence which occurs in optical transmission channels.