Superfluidity and phase correlations of driven dissipative condensates

Jonathan Keeling*, Lukas M. Sieberer, Ehud Altman, Leiming Chen, Sebastian Diehl, John Toner

*Corresponding author for this work

Research output: Chapter in Book/Report/Conference proceedingChapter

6 Citations (Scopus)

Abstract

We review recent results on the coherence and superfluidity of driven dissipative condensates, i.e., systems of weakly interacting nonconserved bosons, such as polariton condensates. The presence of driving and dissipation has dramatically different effects depending on dimensionality and anisotropy. In three dimensions, equilibrium behaviour is recovered at large scales for static correlations, while the dynamical behaviour is altered by the microscopic driving. In two dimensions, for an isotropic system, drive and dissipation destroy the algebraic order that would otherwise exist, however, a sufficiently anisotropic system can still show algebraic phase correlations. We discuss the consequences of this behaviour for recent experiments measuring phase coherence and outline potential measurements that might directly probe superfluidity.

Original languageEnglish
Title of host publicationUniversal Themes of Bose-Einstein Condensation
PublisherCambridge University Press
Pages205-230
Number of pages26
ISBN (Electronic)9781316084366
ISBN (Print)9781107085695
DOIs
Publication statusPublished - 27 Apr 2017

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