论文标题

驾驶驱动系统中的木蓝色机制越过非平衡相变

Kibble-Zurek mechanism in driven-dissipative systems crossing a non-equilibrium phase transition

论文作者

Zamora, A., Dagvadorj, G., Comaron, P., Carusotto, I., Proukakis, N. P., Szymanska, M. H.

论文摘要

Kibble-Zurek机制构成了关键系统物理学中最引人入胜,最普遍的现象之一。它描述了域的形成和拓扑缺陷的自发成核,当系统跨过表现出自发对称性破坏的相变驱动。尽管在广泛的平衡凝结物质系统中观察到缺陷密度对过渡的速度的特征依赖性,但它扩展到本质上驱动的降低性系统是一项持续研究的问题。在这项工作中,我们从数值上确认了驱动驱动量子系统的范式家族中的千里桑氏菌机制,即微腔中的激子 - 果龙。我们的发现表明,普遍性和批判动力学的概念如何扩展到不保留能量或粒子数量或满足详细平衡条件的驱动止血系统。

The Kibble-Zurek mechanism constitutes one of the most fascinating and universal phenomena in the physics of critical systems. It describes the formation of domains and the spontaneous nucleation of topological defects when a system is driven across a phase transition exhibiting spontaneous symmetry breaking. While a characteristic dependence of the defect density on the speed at which the transition is crossed was observed in a vast range of equilibrium condensed matter systems, its extension to intrinsically driven-dissipative systems is a matter of ongoing research. In this work we numerically confirm the Kibble-Zurek mechanism in a paradigmatic family of driven-dissipative quantum systems, namely exciton-polaritons in microcavities. Our findings show how the concepts of universality and critical dynamics extend to driven-dissipative systems that do not conserve energy or particle number nor satisfy a detailed balance condition.

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