论文标题
磁场中夸克冷凝物的手性扰动理论分析
Chiral Perturbation Theory Analysis of the Quark Condensate in a Magnetic Field
论文作者
论文摘要
我们使用坐标空间技术在手性扰动理论中的外部磁场中为夸克冷凝物提供了两回路结果。在有限温度下,我们探讨了磁场对任意锥子质量的Quark冷凝物中锥形相互作用的影响,并在手性极限中得出正确的弱磁场膨胀。在零温度下,我们为真空能量密度和夸克冷凝物提供完整的两环表示。
We present two-loop results for the quark condensate in an external magnetic field within chiral perturbation theory using coordinate space techniques. At finite temperature, we explore the impact of the magnetic field on the pion-pion interaction in the quark condensate for arbitrary pion masses and derive the correct weak magnetic field expansion in the chiral limit. At zero temperature, we provide the complete two-loop representation for the vacuum energy density and the quark condensate.