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arXiv · 1810.11424

Dynamical Phase Transition from Nonequilibrium Dynamics of Dark Solitons

Minyong Guo·Esko Keski-Vakkuri·Hong Liu·Yu Tian·Hongbao Zhang
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Abstract

By holographic duality, we identify a novel dynamical phase transition which results from the temperature dependence of non-equilibrium dynamics of dark solitons in a superfluid.For a non-equilibrium superfluid system with an initial density of dark solitons, there exists a critical temperature $T_d$,above which the system relaxes to equilibrium by producing sound waves, while below which it goes through an intermediate phase with a finite density of vortex-antivortex pairs. In particular, as $T_d$ is approached from below, the density of vortex pairs scales as $(T_d - T)^γ$ with the critical exponent $γ= 1/2$.

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Minyong Guo, Esko Keski-Vakkuri, Hong Liu, Yu Tian, Hongbao Zhang. 2020-01-22. Dynamical Phase Transition from Nonequilibrium Dynamics of Dark Solitons. https://doi.org/10.1103/physrevlett.124.031601

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