QCD pressure and the trace anomaly
QCD pressure and the trace anomaly
复制标题
DOI：
10.1016/s0370-2693(99)00725-x
复制
发表时间：
1999-05
影响因子：
4.4
通讯作者：
I. Drummond;R. Horgan;P. Landshoff;A. Rebhan
中科院分区：
文献类型：
--
作者：
I. Drummond;R. Horgan;P. Landshoff;A. Rebhan
推导了 QCD 热压与微量异常之间的精确关系。首先，它们被用来证明在存在微量异常的情况下平衡时的热力学和流体动压力的等价性，从而弥补了先前论点中的空白。其次，在时间轴向测量仪中，导出了一个公式，该公式用戴森恢复的两点函数来表达热压力。这克服了传统微扰理论方法中遇到的红外问题。
Exact relations between the QCD thermal pressure and the trace anomaly are derived. These are used, first, to prove the equivalence of the thermodynamic and the hydrodynamic pressure in equilibrium in the presence of the trace anomaly, closing a gap in previous arguments. Second, in the temporal axial gauge a formula is derived which expresses the thermal pressure in terms of a Dyson-resummed two-point function. This overcomes the infrared problems encountered in the conventional perturbation-theory approach.