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发布期刊链接：https://journals.aps.org/prd/abstract/10.1103/PhysRevD.96.074019

论文类型：期刊论文

发表时间：2017-10-17

发表刊物：Phys.Rev. D

收录刊物：SCI

学科门类：理学

一级学科：物理学

卷号：96

期号：7

页面范围：074019

摘要：We investigate the chiral symmetry and its spontaneous breaking at finite temperature and in an external magnetic field with four-fermion interactions of different channels. Quantum and thermal fluctuations are included within the functional renormalization group approach, and properties of the set of flow equations for different couplings, such as its fixed points, are discussed. It is found that external parameters, e.g. the temperature and the external magnetic field and so on, do not change the structure of the renormalization group flows for the couplings.