论文标题
严格的pr酸理论,没有温度
A Rigorous Theory of Prethermalization without Temperature
论文作者
论文摘要
prethermalization是指最终在最终热量设置之前朝着一些长寿命的非平衡稳态发展的物理现象。发生这种情况的一种一般情况是在有效的汉密尔顿(在某些旋转框架下)的动力学系统中,这种动态(在某些旋转框架中),使后者对方法负责,可以负责这种方法。这就提出了一个问题,是否有可能拥有与任何有效的哈密顿人无关的pr虫状态。在这里,我们以肯定的方式回答了这个问题。我们展示了一种自然的系统,在这些系统中,在这些系统中,在新兴的全球对称性中定义了prethermal状态,但是将系统带到该状态的动态没有其他保护定律,特别是能量。我们解释了在这种情况下,新颖的物质阶段如何与先前讨论的情况不同。
Prethermalization refers to the physical phenomenon where a system evolves toward some long-lived non-equilibrium steady state before eventual thermalization sets in. One general scenario where this occurs is in driven systems with dynamics governed by an effective Hamiltonian (in some rotating frame), such that ergodicity of the latter is responsible for the approach to the prethermal state. This begs the question whether it is possible to have a prethermal state not associated to any effective Hamiltonian. Here, we answer this question in the affirmative. We exhibit a natural class of systems in which the prethermal state is defined by emergent, global symmetries, but where the dynamics that takes the system to this state has no additional conservation laws, in particular energy. We explain how novel prethermal phases of matter can nevertheless emerge under such settings, distinct from those previously discussed.