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arXiv · 0709.2258

Quantum memory for squeezed light

Juergen Appel·Eden Figueroa·Dmitry Korystov·M. Lobino·A. I. Lvovsky
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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 us using electromagnetically induced transparency. The recovered pulse, analyzed using time-domain homodyne tomography, exhibits up to 0.21+-0.04 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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Juergen Appel, Eden Figueroa, Dmitry Korystov, M. Lobino, A. I. Lvovsky. 2008-01-24. Quantum memory for squeezed light. https://doi.org/10.1103/physrevlett.100.093602

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