硬热环QCD热力学和集体激发研究进展
Recent progress in hard-thermal-loop QCD thermodynamics and collective excitations
摘要：
我回顾了最近的发展QCD热力学和集体激发从硬热环有效理论。我首先用来自重离子碰撞的开放性问题来激发讨论。然后讨论了从硬热圈微扰理论出发，在NNLO条件下对QCD热力学的有限温度和有限密度计算。最后，我讨论了最近的探索推广硬热环框架（色）磁标度$g^2T$，从一个新的无质量模式被发现。
英文摘要：
I review recent developments in QCD thermodynamics and collective excitations from the hard-thermal-loop effective theory. I begin by motivating the discussion with open questions from heavy-ion collisions. I then discuss a finite-temperature and -density calculation of QCD thermodynamics at NNLO from the hard-thermal-loop perturbation theory. Finally I discuss a recent exploration of generalizing the hard-thermal-loop framework to the (chromo)magnetic scale $g^2T$, from which a novel massless mode is uncovered.
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