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Strongly interacting polaritons in coupled arrays of cavities

Hartmann, Michael J. and Brandão, Fernando G. S. L. and Plenio, Martin B. (2006) Strongly interacting polaritons in coupled arrays of cavities. Nature Physics, 2 (12). pp. 849-855. ISSN 1745-2473. doi:10.1038/nphys462.

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Observing quantum phenomena in strongly correlated many-particle systems is difficult because of the short length- and timescales involved. Exerting control over the state of individual elements within such a system is even more so, and represents a hurdle in the realization of quantum computing devices. Substantial progress has been achieved with arrays of Josephson junctions and cold atoms in optical lattices, where detailed control over collective properties is feasible, but addressing individual sites remains a challenge. Here we show that a system of polaritons held in an array of resonant optical cavities—which could be realized using photonic crystals or toroidal microresonators—can form a strongly interacting many-body system showing quantum phase transitions, where individual particles can be controlled and measured. The system also offers the possibility to generate attractive on-site potentials yielding highly entangled states and a phase with particles much more delocalized than in superfluids.

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URLURL TypeDescription Paper
Brandão, Fernando G. S. L.0000-0003-3866-9378
Additional Information:© 2006 Nature Publishing Group. Received 15 June 2006; Accepted 12 October 2006; Published online 26 November 2006. The authors thank Ataç Imamog brevelu, Tobias Kippenberg and Kerry Vahala for discussions and Alex Retzker for proofreading the manuscript. This work is part of the QIP-IRC supported by EPSRC and the Integrated Project Qubit Applications (QAP) supported by the IST directorate and was supported by the Alexander von Humboldt Foundation, the Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq) and the Royal Society. The authors declare that they have no competing financial interests.
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Engineering and Physical Sciences Research Council (EPSRC)UNSPECIFIED
Alexander von Humboldt FoundationUNSPECIFIED
Conselho Nacional de Desenvolvimento Científico e Tecnológico (CNPq)UNSPECIFIED
Issue or Number:12
Record Number:CaltechAUTHORS:20160525-155847226
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Official Citation:Strongly interacting polaritons in coupled arrays of cavities Michael J. Hartmann, Fernando G. S. L. Brandão & Martin B. Plenio Nature Physics 2, 849 - 855 (2006) doi:10.1038/nphys462
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:67370
Deposited By: Tony Diaz
Deposited On:26 May 2016 19:34
Last Modified:11 Nov 2021 00:31

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