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Efficient routing of single photons by one atom and a microtoroidal cavity

Aoki, Takao and Parkins, A. S. and Alton, D. J. and Regal, C. A. and Dayan, Barak and Ostby, E. and Vahala, K. J. and Kimble, H. J. (2009) Efficient routing of single photons by one atom and a microtoroidal cavity. Physical Review Letters, 102 (8). Art. No. 083601. ISSN 0031-9007. doi:10.1103/PhysRevLett.102.083601.

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Single photons from a coherent input are efficiently redirected to a separate output by way of a fiber-coupled microtoroidal cavity interacting with individual cesium atoms. By operating in an overcoupled regime for the input-output to a tapered fiber, our system functions as a quantum router with high efficiency for photon sorting. Single photons are reflected and excess photons transmitted, as confirmed by observations of photon antibunching (bunching) for the reflected (transmitted) light. Our photon router is robust against large variations of atomic position and input power, with the observed photon antibunching persisting for intracavity photon number 0.03 ≾ n ≾ 0.7.

Item Type:Article
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URLURL TypeDescription Paper
Vahala, K. J.0000-0003-1783-1380
Additional Information:© 2009 The American Physical Society. Received 8 October 2008; published 27 February 2009. We gratefully acknowledge the contributions of S. Kelber and E. Wilcut-Connolly. This work is supported by the NSF PHY-0652914, by IARPA via ARO, and by NGST. A. S. P. thanks the Marsden Fund of the Royal Society of New Zealand for support.
Funding AgencyGrant Number
Intelligence Advanced Research Projects Activity (IARPA)UNSPECIFIED
Northrop Grumman Space TechnologyUNSPECIFIED
Marsden Fund of the Royal Society of New ZealandUNSPECIFIED
Army Research Office (ARO)UNSPECIFIED
Subject Keywords:quantum; generation
Issue or Number:8
Record Number:CaltechAUTHORS:20090409-110154960
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:13903
Deposited By: Tony Diaz
Deposited On:17 Apr 2009 19:10
Last Modified:08 Nov 2021 22:41

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