Quantum Memory for Squeezed Light
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Figueroa, Eden
Korystov, Dmitry
Lobino, M.
Lvovsky, A.
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Abstract
We produce a 600-ns pulse of 1.86-dB squeezed vacuum at 795 nm in an optical parametric amplifier and store it in a rubidium vapor cell for 1??峠using electromagnetically induced transparency. The recovered pulse, analyzed using time-domain homodyne tomography, exhibits up to 0.21ᰮ04??dB of squeezing. We identify the factors leading to the degradation of squeezing and investigate the phase evolution of the atomic coherence during the storage interval.
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Physical Review Letters
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100
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9
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© 2008 American Physical Society. This is the author-manuscript version of this paper. Reproduced in accordance with the copyright policy of the publisher. Please refer to the journal's website for access to the definitive, published version.
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Subject
Mathematical sciences
Physical sciences
Atomic and molecular physics
Quantum information, computation and communication
Quantum optics and quantum optomechanics
Engineering