论文标题
高温QCD等离子体中的非平衡吸引子
Non-equilibrium attractor in high-temperature QCD plasmas
论文作者
论文摘要
我们在经历0+1d Bjorken膨胀的弱耦合量规理论中建立了远程平衡的吸引子的存在，该理论超出了能量弹药张量，而不是单粒子分布函数的详细形式。然后，我们证明可以在中间时间重新刻度动力学，并以通用指数为代表。最后，我们评估了不同的程序，用于从吸引子沿能量弹药张量重建完整的单粒子分布函数，并讨论对超浮动核碰撞现象学分析中使用的冻结程序的含义。
We establish the existence of a far-from-equilibrium attractor in weakly-coupled gauge theory undergoing 0+1d Bjorken expansion which goes beyond the energy-momentum tensor to the detailed form of the one-particle distribution function. We then demonstrate that the dynamics can be re-scaled at intermediate times and represented by universal exponents. Finally, we assess different procedures for reconstructing the full one-particle distribution function from the energy-momentum tensor along the attractor and discuss implications for the freeze-out procedure used in the phenomenological analysis of ultra-relativistic nuclear collisions
