Nonequilibrium Prethermal States in a Two-Dimensional Photon Fluid

被引：9

作者：

Abuzarli, Murad ^{[1
]}

Cherroret, Nicolas ^{[1
]}

Bienaime, Tom ^{[1
,2
,3
,4
]}

Glorieux, Quentin ^{[1
]}

机构：

[1] Sorbonne Univ, ENS PSL Univ, Coll France, CNRS,Lab Kastler Brossel, 4 Pl Jussieu, F-75005 Paris, France

[2] Univ Strasbourg, CESQ, F-67000 Strasbourg, France

[3] Univ Strasbourg, ISIS UMR 7006, F-67000 Strasbourg, France

[4] CNRS, F-67000 Strasbourg, France

来源：

PHYSICAL REVIEW LETTERS | 2022年 / 129卷 / 10期

基金：

欧盟地平线“2020”;

关键词：

UNIVERSAL DYNAMICS; CONDENSATION; RELAXATION;

D O I：

10.1103/PhysRevLett.129.100602

中图分类号：

O4 [物理学];

学科分类号：

0702 ;

摘要：

We report on the observation of a prethermal state in a nonequilibrium, two-dimensional fluid of light. Direct measurements of the first order coherence function of the fluid reveal the dynamical emergence of algebraic correlations, a quasi-steady-state with properties close to those of thermal superfluids. By a controlled increase of the fluctuations, we observe a crossover from algebraic to short-range (exponential) correlations. We interpret this phenomenon as a nonequilibrium precursor of the Kosterlitz-Thouless transition.

引用

页数：6

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