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arxiv: 1001.3953 · v1 · pith:VFSQDLAJnew · submitted 2010-01-22 · 🪐 quant-ph

Atomic quantum memories for light

A.S. Sheremet (1) , O.S. Mishina (2) , E. Giacobino (2) , D.V. Kupriyanov (1) ((1) Department of Theoretical Physics , State Polytechnic University , St.-Petersburg , Russia , (2) Laboratoire Kastler Brossel
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Universite Pierre et Marie Curie Ecole Normale Superieure CNRS Paris France)
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keywords memoryquantumatomiccoherentlightaffectalkalianalyze
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We consider the coherent stimulated Raman process developing in an optically dense and disordered atomic medium in application to the quantum memory scheme. Our theoretical model predicts that the hyperfine interaction in the excited state of alkali atoms can positively affect on the quantum memory efficiency. Based on the concept of the coherent information transfer we analyze and compare the memory requirements for storage of single photon and macroscopic multi-photon light pulses.

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