Quantum Memory for Squeezed Light

Jürgen Appel, Eden Figueroa, Dmitry Korystov, M. Lobino, and A. I. Lvovsky
Phys. Rev. Lett. 100, 093602 – Published 5 March 2008

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 1μs using electromagnetically induced transparency. The recovered pulse, analyzed using time-domain homodyne tomography, exhibits up to 0.21±0.04dB 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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  • Received 11 October 2007

DOI:https://doi.org/10.1103/PhysRevLett.100.093602

©2008 American Physical Society

Authors & Affiliations

Jürgen Appel*, Eden Figueroa, Dmitry Korystov, M. Lobino, and A. I. Lvovsky

  • Institute for Quantum Information Science, University of Calgary, Calgary, Alberta T2N 1N4, Canada†

  • *Present address: Niels Bohr Institute, Blegdamsvej 17 DK - 2100 København, Denmark.
  • http://www.iqis.org/

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Issue

Vol. 100, Iss. 9 — 7 March 2008

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