论文标题
在热中介质到近代的柔软光子传播
Soft photon propagation in a hot and dense medium to next-to-leading order
论文作者
论文摘要
我们在量子电动力学（QED）中以热和/或致密的超层流等离子体（QED）中的热光子自我能源（QED）提出了第一个完整的计算到近距离领先顺序的完整计算。该计算是在实时形式主义中使用尺寸正则化$4-2ε$尺寸的实时形式主义执行的，而报告的结果包括零温度限制中的显式$ o（ε）$项。伴侣论文中报道，需要此信息来扩展冷和密集Q的压力的扰动计算到弱偶联扩张中的部分临近到次要到领导顺序。这些结果为量子染色体动力学的未来计算铺平了道路。
We present the first complete calculation of the soft photon self-energy to the next-to-leading order in a hot and/or dense ultrarelativistic plasma in Quantum Electrodynamics (QED). The calculation is performed within the real-time formalism utilizing dimensional regularization in $4-2ε$ dimensions, while the result is reported including explicit $O(ε)$ terms in the zero-temperature limit. This information is required to extend the perturbative calculation of the pressure of cold and dense QED matter to partial next-to-next-to-next-to-leading order in a weak-coupling expansion, reported in a companion paper. These results pave the way for a similar future calculation in Quantum Chromodynamics.
