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Collective pairing of resonantly coupled microcavity polaritons

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PhysRevLett.113.216405.pdf (251.7Kb)
Date
21/11/2014
Author
Marchetti, F. M.
Keeling, Jonathan
Keywords
QC Physics
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Abstract
We consider the possible phases of microcavity polaritons tuned near a bipolariton Feshbach resonance. We show that, as well as the regular polariton superfluid phase, a “molecular” superfluid exists, with (quasi-)long-range order only for pairs of polaritons. We describe the experimental signatures of this state. Using variational approaches we find the phase diagram (critical temperature, density, and exciton-photon detuning). Unlike for ultracold atoms, the molecular superfluid is not inherently unstable, and our phase diagram suggests it is attainable in current experiments.
Citation
Marchetti , F M & Keeling , J 2014 , ' Collective pairing of resonantly coupled microcavity polaritons ' , Physical Review Letters , vol. 113 , no. 21 , pp. 216405 . https://doi.org/10.1103/PhysRevLett.113.216405
Publication
Physical Review Letters
Status
Peer reviewed
DOI
https://doi.org/10.1103/PhysRevLett.113.216405
ISSN
0031-9007
Type
Journal article
Rights
© 2014 American Physical Society
Description
F. M. M. acknowledges financial support from the programs Ramón y Cajal, MINECO (MAT2011-22997), CAM (S-2009/ESP-1503), and Intelbiomat (ESF). J. K. acknowledges support from the EPSRC program “TOPNES” (EP/I031014/1) and EPSRC (EP/G004714/2).
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  • University of St Andrews Research
URL
http://journals.aps.org/prl/abstract/10.1103/PhysRevLett.113.216405#supplemental
URI
http://hdl.handle.net/10023/5834

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