论文标题
自发对称性破裂而没有经典字段：功能重新归一化组方法
Spontaneous Symmetry Breaking without classical fields: a Functional Renormalization Group approach
论文作者
论文摘要
我们提出了一种描述自发对称性破坏（SSB）的方法，该方法不依赖于顺序参数依赖性自由能（Landau理论）。我们使用与病房身份兼容的截断方案，使用明显破碎理论的功能重新归一化组（FRG）的演变。为了表示对称性破裂，我们建议使用“病房比”，该“病房比率”在对称阶段为零，而在破碎相中的统一性为零。在这种方法中，有效电位的统一规模演变适用于两个阶段。奇特的演变在临界制度中加速了，这是奇怪的。
We propose an approach to describe Spontaneous Symmetry Breaking (SSB) that does not rely on the order parameter dependent free energy (Landau theory). We use the Functional Renormalization Group (FRG) evolution of the explicitly broken theory, using a truncation scheme that is compatible with the Ward identities. To represent the symmetry breaking, we propose to use the "Ward ratio" which is zero in the symmetric phase and unity in the broken phase. In this approach a unified scale evolution of the effective potential is applicable in both phases. It is peculiar that the scale evolution is accelerated in the critical regime.
