English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Plus monthly

Global: Zendy Tools annual

Global: Zendy Tools monthly

Global: Zendy Free Plan

We develop a semi-analytical description for theBerezinskii-Kosterlitz-Thouless (BKT) like phase transition in nonequilibriumBose-Einstein condensates. Our theoretical analysis is based on a noisygeneralized Gross-Pitaevskii equation. Above a critical strength of the noise,spontaneous vortex-antivortex pairs are generated. We provide a semi-analyticaldetermination of the transition point based on a linearized Bogoliubovanalysis, to which some nonlinear corrections are added. We present twodifferent approaches that are in agreement with our numerical calculations in awide range of system parameters. We find that for small losses and not toosmall energy relaxation, the critical point approaches that of the equilibriumBKT transition. Furthermore, we find that losses tend to stabilize the orderedphase: keeping the other parameters constant and increasing the losses leads toa higher critical noise strength for the spontaneous generation ofvortex-antivortex pairs. Our theoretical analysis is relevant for experimentson microcavity polaritons.

Noise-induced transition from superfluid to vortex state in two-dimensional nonequilibrium polariton condensates -- semi-analytical treatment