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arXiv · 0803.2997

Mode-locking and mode-competition in a non-equilibrium solid-state condensate

P. R. Eastham
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Abstract

A trapped polariton condensate with continuous pumping and decay is analyzed using a generalized Gross-Pitaevskii model. Whereas an equilibrium condensate is characterized by a macroscopic occupation of a ground state, here the steady-states take more general forms. Some are characterized by a large population in an excited state, and others by large populations in several states. In the latter case, the highly-populated states synchronize to a common frequency above a critical density. Estimates for the critical density of this synchronization transition are consistent with experiments.

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P. R. Eastham. 2008-03-20. Mode-locking and mode-competition in a non-equilibrium solid-state condensate. https://doi.org/10.1103/physrevb.78.035319

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