非线性量子临界动力学和远离平衡态的涨落耗散比
Non-linear quantum critical dynamics and fluctuation-dissipation ratios far from equilibrium
摘要：
强关联电子系统的非热关联和凝聚态相的远离平衡态性质已成为一个热门的研究领域。在这里，一个概述的非线性动力学发现附近连续零温度相变的有效温度的上下文中。特别是，我们专注于临界近藤破坏模型。这样的量子临界状态，近藤屏蔽被破坏的关键方式，是实现在一些稀土金属间化合物。这就提出了在量子临界附近的有效温度下，实验测试远离平衡的涨落耗散关系的可能性。最后，我们提出了一个非相互作用的，关键的参考系，赝隙共振能级模型，在有效温度和对比这些结果与附近的相互作用量子临界点。
英文摘要：
Non-thermal correlations of strongly correlated electron systems and the far-from-equilibrium properties of phases of condensed matter have become a topical research area. Here, an overview of the non-linear dynamics found near continuous zero-temperature phase transitions within the context of effective temperatures is presented. In particular, we focus on models of critical Kondo destruction. Such a quantum critical state, where Kondo screening is destroyed in a critical fashion, is realized in a number of rare earth intermetallics. This raises the possibility of experimentally testing for the existence of fluctuation-dissipation relations far from equilibrium in terms of effective temperatures near quantum criticality. Finally, we present an analysis of a non-interacting, critical reference system, the pseudogap resonant level model, in terms of effective temperatures and contrast these results with those obtained near interacting quantum critical points.
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