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Journal Articles Physical Review A : Atomic, molecular, and optical physics Year : 2011

Controlling the quantum state of a single photon emitted from a single polariton

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Abstract

We investigate in detail the optimal conditions for a high fidelity transfer from a single polariton state to a single photon state and subsequent homodyne detection of the single photon. We assume that, using various possible techniques, the single polariton has initially been stored as a spin-wave grating in a cloud of cold atoms inside a low-finesse cavity. This state is then transferred to a single photon optical pulse using an auxiliary beam. We optimize the retrieval efficiency and determine the mode of the local oscillator that maximizes the homodyne efficiency of such a photon. We find that both efficiencies can have values close to one in a large region of experimental parameters.
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Dates and versions

hal-00674751 , version 1 (28-02-2012)

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Jovica Stanojevic, Valentina Parigi, Erwan Bimbard, Rosa Tualle-Brouri, Alexei Ourjoumtsev, et al.. Controlling the quantum state of a single photon emitted from a single polariton. Physical Review A : Atomic, molecular, and optical physics, 2011, 84, pp.053830. ⟨10.1103/PhysRevA.84.053830⟩. ⟨hal-00674751⟩
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