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Time-separated entangled light pulses from a single-atom emitter

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arxiv 0712.3728 v2 pith:BJGFEKA5 submitted 2007-12-21 quant-ph

Time-separated entangled light pulses from a single-atom emitter

classification quant-ph
keywords pulsesentangledlightdifferententanglementgenerationinteractionaccessible
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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The controlled interaction between a single, trapped, laser-driven atom and the mode of a high-finesse optical cavity allows for the generation of temporally separated, entangled light pulses. Entanglement between the photon-number fluctuations of the pulses is created and mediated via the atomic center-of-mass motion, which is interfaced with light through the mechanical effect of atom-photon interaction. By means of a quantum noise analysis we determine the correlation matrix which characterizes the entanglement, as a function of the system parameters. The scheme is feasible in experimentally accessible parameter regimes. It may be easily extended to the generation of entangled pulses at different frequencies, even at vastly different wavelengths.

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