Abstract

We investigate the process of condensation of exciton-polaritons in a one-dimensional nanowire, predicting spontaneous formation of domains of uncondensed excitons and condensed polaritons. We find that the system does not follow the standard Kibble-\ifmmode \dot{Z}\else \.{Z}\fi{}urek scenario of defect formation. Nevertheless, the universal scaling laws are still present if the critical exponents are replaced by their ``nonequilibrium'' counterparts related to the imaginary part of the time-dependent Bogoliubov spectrum.

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