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Subwavelength vacuum lattices and atom–atom interactions in two-dimensional photonic crystals

González-Tudela, A. and Hung, C.-L. and Chang, D. E. and Cirac, J. I. and Kimble, H. J. (2015) Subwavelength vacuum lattices and atom–atom interactions in two-dimensional photonic crystals. Nature Photonics, 9 (5). pp. 320-325. ISSN 1749-4885. doi:10.1038/nphoton.2015.54.

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Quantum simulation with cold atoms in optical lattices is an attractive avenue for explorations of quantum many-body physics. A principal challenge in the field is to increase the energy and length scales in current set-ups, thereby reducing temperature and coherence-time requirements. Here, we present a new paradigm for high-density, two-dimensional optical lattices in photonic crystal waveguides. Specially engineered two-dimensional photonic crystals provide a practical platform to trap atoms and engineer their interactions in ways that surpass the limitations of current technologies and enable investigations of novel quantum many-body matter. Our schemes remove the constraint on the lattice constant set by the free-space optical wavelength in favour of deeply sub-wavelength atomic arrays. We further describe possibilities for atom–atom interactions mediated by photons in two-dimensional photonic crystal waveguides with energy scales several orders of magnitude larger than for exchange interactions in free-space lattices and with the capability to engineer strongly long-range interactions.

Item Type:Article
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Hung, C.-L.0000-0002-6879-3639
Cirac, J. I.0000-0003-3359-1743
Additional Information:© 2015 Macmillan Publishers Limited. Received 15 June 2014 Accepted 02 March 2015 Published online 06 April 2015. The authors thank O. Painter, J. Muñiz and S. Meenehan for discussions. The work of A.G.-T. and J.I.C. was funded by European Union integrated project ‘Simulators and Interfaces with Quantum Systems’ (SIQS). A.G.-T. also acknowledges support from the Alexander Von Humboldt Foundation and Intra-European Fellowship NanoQuIS (625955). J.I.C. acknowledges support as a Moore Distinguished Scholar. D.E.C. acknowledges support from Fundacio Privada Cellex Barcelona. H.J.K. and C.-L.H. acknowledge funding 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, Quantum Memories in Photon-Atomic-Solid State Systems (QuMPASS) Multidisciplinary University Research Initiatives (MURI), by the Department of Defense National Security Science and Engineering Faculty Fellows (DoD NSSEFF) programme, and by NSF PHY1205729. H.J.K. acknowledges support as a Max Planck Institute for Quantum Optics Distinguished Scholar. Author contributions: A.G.-T. and C.-L.H. carried out analytical and numerical calculations. A.G.-T., C.-L.H., D.C., J.I.C. and H.J.K. contributed materials and analysis tools. A.G-T. and H.J.K. wrote the manuscript.
Group:Institute for Quantum Information and Matter
Funding AgencyGrant Number
Alexander Von Humboldt FoundationUNSPECIFIED
Marie Curie Fellowship625955
Gordon and Betty Moore FoundationUNSPECIFIED
Fundacio Privada Cellex BarcelonaUNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
National Security Science and Engineering Faculty FellowshipUNSPECIFIED
Max Planck Institute for Quantum OpticsUNSPECIFIED
Issue or Number:5
Record Number:CaltechAUTHORS:20150226-145901874
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:55275
Deposited By: Katherine Johnson
Deposited On:29 Apr 2015 16:58
Last Modified:10 Nov 2021 20:44

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