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arxiv 0907.3839 v2 pith:U7V2ZWRV submitted 2009-07-22 quant-ph

Fast Entanglement Distribution with Atomic Ensembles and Fluorescent Detection

classification quant-ph
keywords entanglementatomicdetectiondistributionexperimentalfluorescentquantumachieving
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Quantum repeaters based on atomic ensemble quantum memories are promising candidates for achieving scalable distribution of entanglement over long distances. Recently, important experimental progress has been made towards their implementation. However, the entanglement rates and scalability of current approaches are limited by relatively low retrieval and single-photon detector efficiencies. We propose a scheme, which makes use of fluorescent detection of stored excitations to significantly increase the efficiency of connection and hence the rate. Practical performance and possible experimental realizations of the new protocol are discussed.

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