标题： 柯尔莫戈罗夫型非热固定点及远离平衡的稀疏系统：超冷费米气体 显示英文标题

标题： Kolmogorov-type non-thermal fixed points and beyond of far-from-equilibrium dilute system: ultra-cold Fermi gas

摘要： 由量子场论中下一阶修正（NLO）散射驱动的非平衡动力学，对于粒子分布具有特征性的Kolmogorov型非热固定点的定态解。 研究了空间均匀、各向同性稀薄超冷费米气体的动力学，并通过准粒子假设，在微扰理论中确认了Kolmogorov型非热固定点，这与弱耦合超冷玻色气体的波湍流形成对比。 此外，在没有准粒子假设和强耦合系统中发现了其他定态。 这些解析解为未来实验和数值模拟寻找稀薄系统的非平衡定态提供了机会。 显示英文摘要

摘要： The far-from-equilibrium dynamics driven by the scattering from next-to-leading-order (NLO) corrections in the quantum field theory has stationary solutions for the particle distribution characterized as the Kolmogorov-type non-thermal fixed points. The dynamics of the spatially homogeneous, isotropic dilute ultra-cold Fermi gas is investigated, and its kinetic equation confirms the Kolmogorov-type non-thermal fixed points in the perturbation theory by the quasi-particle assumption, in contrast to the wave turbulence of the weakly coupled ultra-cold Bose gas. In addition, other stationary states are found without the quasi-particle assumption and in a strongly coupled system. These analytical solutions provide chances for future experiments and numerical simulations in search of far-from-equilibrium stationary states of the dilute system.