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|a Zhang, Hao
|e author
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|a Massachusetts Institute of Technology. Department of Physics
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|a Massachusetts Institute of Technology. Research Laboratory of Electronics
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|a MIT-Harvard Center for Ultracold Atoms
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|a McConnell, Robert P.
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|a Zhang, Hao
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|a Cuk, Senka
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|a Hu, Jiazhong
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|a Vuletic, Vladan
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|a Schleier-Smith, Monika
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|a McConnell, Robert P.
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|a Cuk, Senka
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|a Vuletic, Vladan
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|a Hu, Jiazhong, Ph. D. Massachusetts Institute of Technology
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|a Generating entangled spin states for quantum metrology by single-photon detection
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|b American Physical Society,
|c 2014-02-24T19:45:49Z.
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|z Get fulltext
|u http://hdl.handle.net/1721.1/85087
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|a We propose and analyze a probabilistic but heralded scheme to generate pure, entangled, non-Gaussian states of collective spin in large atomic ensembles by means of single-photon detection. One photon announces the preparation of a Dicke state, while two or more photons announce Schrödinger cat states. The method produces pure states even for finite photon detection efficiency and weak atom-photon coupling. The entanglement generation can be made quasideterministic by means of repeated trial and feedback, enabling metrology beyond the standard quantum limit.
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|a National Science Foundation (U.S.)
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|a United States. Defense Advanced Research Projects Agency. System Science Division. Defense Sciences Office (Quantum-Assisted Sensing and Readout)
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|a United States. Army Research Office. Multidisciplinary University Research Initiative
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|a MIT-Harvard Center for Ultracold Atoms
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|a en_US
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|a Article
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|t Physical Review A
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