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Atom–atom interactions around the band edge of a photonic crystal waveguide

Hood, Jonathan D. and Goban, Akihisa and Asenjo-Garcia, Ana and Lu, Mingwu and Yu, Su-Peng and Chang, Darrick E. and Kimble, H. J. (2016) Atom–atom interactions around the band edge of a photonic crystal waveguide. Proceedings of the National Academy of Sciences of the United States of America, 113 (38). pp. 10507-10512. ISSN 0027-8424. PMCID PMC5035845. doi:10.1073/pnas.1603788113.

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Tailoring the interactions between quantum emitters and single photons constitutes one of the cornerstones of quantum optics. Coupling a quantum emitter to the band edge of a photonic crystal waveguide (PCW) provides a unique platform for tuning these interactions. In particular, the cross-over from propagating fields E(x)∝e ±^(ik_xx) outside the bandgap to localized fields E(x)∝e^(−κ_x|x|) within the bandgap should be accompanied by a transition from largely dissipative atom–atom interactions to a regime where dispersive atom–atom interactions are dominant. Here, we experimentally observe this transition by shifting the band edge frequency of the PCW relative to the D_1 line of atomic cesium for N =3.0±0.5 atoms trapped along the PCW. Our results are the initial demonstration of this paradigm for coherent atom–atom interactions with low dissipation into the guided mode.

Item Type:Article
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URLURL TypeDescription Information CentralArticle Paper
Asenjo-Garcia, Ana0000-0001-9850-5610
Yu, Su-Peng0000-0003-1348-7447
Chang, Darrick E.0000-0002-5426-7339
Additional Information:© 2016 National Academy of Sciences. Freely available online through the PNAS open access option. Contributed by H. Jeffrey Kimble, June 17, 2016 (sent for review March 7, 2016; reviewed by Eugene Polzik and Dan Stamper-Kurn). Published online before print August 31, 2016. We gratefully acknowledge discussions with T. Shi and Y. Wu. The work of C.-L.H. and H.J.K. was funded by the Institute for Quantum Information and Matter, a National Science Foundation (NSF) Physics Frontier Center with support of the Moore Foundation; by the Air Force Office of Scientific Research (AFOSR) Quantum Memories in Photon-Atomic Solid-State Systems Multidisciplinary Research Program of the University Research Initiative (MURI); by the Department of Defense National Security Science and Engineering Faculty Fellowship Program; by NSF Grant PHY1205729; by the Office of Naval Research (ONR) Award N00014-16-1-2399; and by the ONR Quantum Opto-Mechanics with Atoms and Nanostructured Diamond MURI. A.G.-T. and J.I.C. acknowledge funding by the European Union integrated project “Simulators and Interfaces with Quantum Systems.” A.G.-T. also acknowledges support from Alexander Von Humboldt Foundation and Intra-European Marie Curie Fellowship Nanophotonics for Quantum Information and Simulation (625955). Author contributions: C.-L.H. developed concept and analytical calculations; C.-L.H., A.G.-T., J.I.C., and H.J.K. performed research; C.-L.H., A.G.-T., J.I.C., and H.J.K. contributed materials; A.G.-T. performed analytical and numerical analysis; and C.-L.H., A.G.-T., and H.J.K. wrote the paper. C.-L.H. and A.G.-T. contributed equally to this work. Reviewers: N.G., Université libre de Bruxelles; and A.M.R., JILA, University of Colorado. The authors declare no conflict of interest. This article contains supporting information online at
Group:Institute for Quantum Information and Matter
Funding AgencyGrant Number
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Institute for Quantum Information and Matter (IQIM)UNSPECIFIED
NSF Physics Frontiers CenterUNSPECIFIED
Gordon and Betty Moore FoundationUNSPECIFIED
Office of Naval Research (ONR)N00014-16-1-2399
National Security Science and Engineering Faculty FellowshipUNSPECIFIED
Nakajima FoundationUNSPECIFIED
Marie Curie Fellowship655701
International Fulbright Science and Technology AwardUNSPECIFIED
Fundacio Privada Cellex BarcelonaUNSPECIFIED
Ministerio de Economía y Competitividad (MINECO)SEV-2015-0522
European Research Council (ERC)UNSPECIFIED
Subject Keywords:quantum optics; nanophotonics; atomic physics
Issue or Number:38
PubMed Central ID:PMC5035845
Record Number:CaltechAUTHORS:20160901-072818299
Persistent URL:
Official Citation:Jonathan D. Hood, Akihisa Goban, Ana Asenjo-Garcia, Mingwu Lu, Su-Peng Yu, Darrick E. Chang, and H. J. Kimble Atom–atom interactions around the band edge of a photonic crystal waveguide PNAS 2016 113 (38) 10507-10512; published ahead of print August 31, 2016, doi:10.1073/pnas.1603788113
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:70100
Deposited By: Tony Diaz
Deposited On:01 Sep 2016 15:19
Last Modified:19 Apr 2022 17:16

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