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arXiv · 1607.06451

Space-time vortex driven crossover and vortex turbulence phase transition in one-dimensional driven open condensates

Liang He·Lukas M. Sieberer·Sebastian Diehl
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Abstract

We find a first order transition driven by the strength of non-equilibrium conditions of one-dimensional driven open condensates. Associated with this transition is a new stable non-equilibrium phase, space-time vortex turbulence, whose vortex density and quasiparticle distribution show strongly non-thermal 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 non-equilibrium vortex turbulent phase is facilitated in driven open condensates with a large diffusion rate.

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Liang He, Lukas M. Sieberer, Sebastian Diehl. 2017-02-21. Space-time vortex driven crossover and vortex turbulence phase transition in one-dimensional driven open condensates. https://doi.org/10.1103/physrevlett.118.085301

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