Finite temperature symmetry restoration in the U_L(3)xU_R(3) linear sigma model from a large-n approximation
Finite temperature symmetry restoration in the U_L(3)xU_R(3) linear sigma model from a large-n approximation
复制标题
根据大 n 近似恢复 U_L(3)xU_R(3) 线性 sigma 模型中的有限温度对称性
DOI：
10.1103/physrevd.85.117502
复制
发表时间：
2012
期刊：
影响因子：
--
通讯作者：
A. Patkos
中科院分区：
文献类型：
--
作者：
G. Fejos;A. Patkos
研究了最近提出的对称线性σ模型在有限温度下的近似大基态解。我们研究了对应于对称性破缺模式的两个凝聚体的耦合蒸发，这种耦合蒸发是由耦合空间中的基态实现的。绘出了涨落诱导的一级跃迁区域及其二级边界。证明了三临界点的存在性。
A recently proposed approximate large-ground state solution of thesymmetric linear sigma model is investigated at finite temperature. We study the coupled evaporation of two condensates corresponding to the symmetry breaking pattern, realized by the ground state in certain parts of the coupling space. The region of the fluctuation induced first order transitions and its second order boundary is mapped out. The existence of a tricritical point is conjectured.