论文标题
复杂固体中的照片诱导的相变
Photo-induced phase-transitions in complex solids
论文作者
论文摘要
由高度合作相互作用驱动的照片诱导的相变（PIPT）具有根本的兴趣，因为它们为超快时间标准的调整和控制材料特性提供了一种方法。由于相关性和相互作用很强，复杂的量子材料具有几个引人入胜的档位，例如光诱导的电荷密度波和铁电性，并已成为研究这些pipts的理想环境。该领域的一个核心问题是对驱动PIPT的基本机制的正确理解。由于这些PIPT是高度非线性的过程，并且通常涉及多个时间和长度尺度，因此通常需要采用不同的理论方法来理解潜在的机制。在这篇综述中，我们简要概述了在复杂材料中实现的PIPT，然后讨论了可用的理论方法，其中选定的示例是对PIPT非平衡途径的最新进展。
Photo-induced phase-transitions (PIPTs) driven by highly cooperative interactions are of fundamental interest as they offer a way to tune and control material properties on ultrafast timescales. Due to strong correlations and interactions, complex quantum materials host several fascinating PIPTs such as light-induced charge density waves and ferroelectricity and have become a desirable setting for studying these PIPTs. A central issue in this field is the proper understanding of the underlying mechanisms driving the PIPTs. As these PIPTs are highly nonlinear processes and often involve multiple time and length scales, different theoretical approaches are often needed to understand the underlying mechanisms. In this review, we present a brief overview of PIPTs realized in complex materials, followed by a discussion of the available theoretical methods with selected examples of recent progress in understanding of the nonequilibrium pathways of PIPTs.
