论文标题
QCD的热磁特性
Thermomagnetic Properties of QCD
论文作者
论文摘要
我们通过在手性扰动理论（CHPT）中推导了熵密度和磁化的两环表示，探讨了受外部磁场的量子染色体动力学的低能状态。在固定温度下，当磁场变得更强时，熵密度会下降。在有限温度下诱导的磁化在CHPT可访问的整个参数区域中为负。我们还指出，夸克冷凝物中有限温度部分的增强与熵密度的降低相关。
We explore the low-energy regime of quantum chromodynamics subjected to an external magnetic field by deriving the two-loop representations for the entropy density and the magnetization within chiral perturbation theory (CHPT). At fixed temperature, the entropy density drops when the magnetic field becomes stronger. The magnetization induced at finite temperature is negative in the entire parameter region accessible by CHPT. We also point out that the enhancement of the finite-temperature part in the quark condensate is correlated with the decrease of the entropy density.
