title: Space-Time Vortex Driven Crossover and Vortex Turbulence Phase Transition in One-Dimensional Driven Open Condensates.
abstract: We find a first-order transition driven by the strength of nonequilibrium conditions of one-dimensional driven open condensates. Associated with this transition is a new stable nonequilibrium phase, space-time vortex turbulence, whose vortex density and quasiparticle distribution show strongly nonthermal behavior. Below the transition, we identify a new time scale associated with noise-activated unbound space-time vortices, beyond which, the temporal coherence function changes from a Kardar-Parisi-Zhang-type subexponential to a disordered exponential decay. Experimental realization of the nonequilibrium vortex turbulent phase is facilitated in driven open condensates with a large diffusion rate.
authors.affiliation: Institute for Theoretical Physics, Technical University Dresden, D-01062 Dresden, Germany.|Institute for Theoretical Physics, University of Cologne, D-50937 Cologne, Germany.
authors.forename: Liang
authors.initials: L
authors.lastname: He
authors.affiliation: Department of Condensed Matter Physics, Weizmann Institute of Science, Rehovot 7610001, Israel.|Department of Physics, University of California, Berkeley, California 94720, USA.
authors.forename: Lukas M
authors.initials: LM
authors.lastname: Sieberer
authors.affiliation: Institute for Theoretical Physics, Technical University Dresden, D-01062 Dresden, Germany.|Institute for Theoretical Physics, University of Cologne, D-50937 Cologne, Germany.
authors.forename: Sebastian
authors.initials: S
authors.lastname: Diehl