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Proceedings Paper

Toward nonclassical light storage via atomic-vapor Raman scattering
Author(s): Caspar H. van der Wal; M. D. Eisaman; A. S. Zibrov; A. Andre; D. F. Phillips; R. L. Walsworth; M. D. Lukin
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Paper Abstract

We present experimental work that investigates whether quantum information carried by light can be stored via reversible mapping of the quantum state of such light onto a collective atomic coherence. Such a quantum memory could be utilized to allow quantum communication over long, lossy channels. Current efforts concentrate on writing a photon-number-squeezed state of light onto a collective coherence between the ground-state hyperfine levels of 87Rb atoms in a warm vapor cell, and subsequent on-demand retrieval of this light. In this approach, intensity squeezing between the written and retrieved photon fields provides evidence for storage of a photon-number-squeezed state of light. The scheme is based on spontaneous Raman transitions that create the atomic coherence, and at the same time convert control fields into signal fields that propagate under conditions of electromagnetically induced transparency. We present experimental results demonstrating the storage and retrieval of light using this method, and discuss techniques for measuring intensity squeezing between these photon fields.

Paper Details

Date Published: 8 May 2003
PDF: 11 pages
Proc. SPIE 5115, Noise and Information in Nanoelectronics, Sensors, and Standards, (8 May 2003); doi: 10.1117/12.497071
Show Author Affiliations
Caspar H. van der Wal, Harvard Univ. (United States)
Harvard-Smithsonian Ctr. for Astrophysics (United States)
M. D. Eisaman, Harvard Univ. (United States)
A. S. Zibrov, Harvard Univ. (United States)
Harvard-Smithsonian Ctr. for Astrophysics (United States)
P.N. Lebedev Physical Institute (Russia)
A. Andre, Harvard Univ. (United States)
D. F. Phillips, Harvard-Smithsonian Ctr. for Astrophysics (United States)
R. L. Walsworth, Harvard-Smithsonian Ctr. for Astrophysics (United States)
M. D. Lukin, Harvard Univ. (United States)


Published in SPIE Proceedings Vol. 5115:
Noise and Information in Nanoelectronics, Sensors, and Standards
Laszlo B. Kish; Frederick Green; Giuseppe Iannaccone; John R. Vig, Editor(s)

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