Mapping broadband single-photon wavepackets into an atomic memory
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We analyze a quantum optical memory based on the off-resonant Raman interaction of a single broadband photon, copropagating with a classical control pulse, with an atomic ensemble. The conditions under which the memory can perform optimally are found, by means of a `universal' mode decomposition. This enables the memory efficiency to be specified in terms of a single parameter, and the control field pulse shape to be determined via a simple nonlinear scaling. We apply the same decomposition to determine the optimal configurations for read-out.
5 pages, 4 figures, published in PRA Rapid Communications
5 pages, 4 figures, published in PRA Rapid Communications