Universal Approach to Optimal Photon Storage in Atomic Media

Physics – Quantum Physics

Scientific paper

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4 pages, 3 figures. V2: major changes in presentation (title, abstract, main text), simplification of derivations, new referen

Scientific paper

10.1103/PhysRevLett.98.123601

We present a universal physical picture for describing storage and retrieval of photon wave packets in a Lambda-type atomic medium. This physical picture encompasses a variety of different approaches to pulse storage ranging from adiabatic reduction of the photon group velocity and pulse-propagation control via off-resonant Raman fields to photon-echo based techniques. Furthermore, we derive an optimal control strategy for storage and retrieval of a photon wave packet of any given shape. All these approaches, when optimized, yield identical maximum efficiencies, which only depend on the optical depth of the medium.

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