Dynamics of formation and decay of coherence in a polariton condensate

Details Dynamics of formation and decay of coherence in a polariton condensate Dynamics of formation and decay of coherence in a polariton condensate

2009-03-11

arxiv.org/abs/0903.1954v2

Phys. Rev. Lett., 103, 096404 (2009)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

Scientific paper

10.1103/PhysRevLett.103.096404

We study the dynamics of formation and decay of a condensate of microcavity polaritons. We investigate the relationship between the number of particles, the emission's linewidth and its degree of linear polarization which serves as the order parameter. Tracking the condensate's formation, we show that, even when interactions are negligible, coherence is not determined only by occupation of the ground state. As a result of the competition between the coherent and thermal fractions of the condensate, the highest coherence is obtained some time after the particle number has reached its maximum.

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