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APS » Journals » Phys. Rev. Lett. » Volume 103 » Issue 9
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Phys. Rev. Lett. 103, 096404 (2009) [4 pages]

Dynamics of the Formation and Decay of Coherence in a Polariton Condensate

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E. del Valle1, D. Sanvitto2, A. Amo2,*, F. P. Laussy1, R. André3, C. Tejedor4, and L. Viña2
1School of Physics and Astronomy, University of Southampton, SO171BJ, Southampton, United Kingdom
2Departamento Física de Materiales, Universidad Autónoma de Madrid, 28049, Madrid, Spain
3CEA-CNRS, Institut NEEL-CNRS, B.P. 166, 38042 Grenoble Cedex 9, France
4Departamento Física Teórica de la Materia Condensada, Universidad Autónoma de Madrid, 28049, Madrid, Spain

Received 11 March 2009; published 26 August 2009

We study the dynamics of the formation and decay of a condensate of microcavity polaritons. We investigate the relationship among the number of particles, the emission linewidth, and its degree of linear polarization, which serves as the order parameter. Tracking the condensate formation, we show that coherence is not determined only by occupation of the ground state, bringing new insights into the determining factors for Bose-Einstein condensation.

© 2009 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevLett.103.096404
DOI:
10.1103/PhysRevLett.103.096404
PACS:
71.36.+c, 03.75.Nt, 03.75.Kk, 42.55.Sa

*Present address: Laboratoire Kastler Brossel, Université Pierre et Marie Curie, Ecole Normale Supérieure et CNRS, UPMC Case 74, 75252 Paris Cedex 05, France.

 
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