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Quantum memory for light via a stimulated off-resonant Raman process: Beyond the three-levelΛ-scheme approximation
2010
Physical Review A. Atomic, Molecular, and Optical Physics
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We consider a quantum memory scheme based on the conversion of a signal pulse into a long-lived spin coherence via stimulated off-resonant Raman process. For a storing medium consisting of alkali atoms, we have calculated the Autler-Townes resonance structure created by a strong control field. By taking into account the upper hyperfine states of the D1 optical transition, we show important deviations from the predictions of the usual three-level Lambda-scheme approximation and we demonstrate an
doi:10.1103/physreva.82.033838
fatcat:4d5scyelm5erjknxjcezhdovva