Triple point in the O(2) ghost model with higher-order gradient term

被引：0

作者：

Peli, Z. ^{[1
]}

Nagy, S. ^{[1
]}

Sailer, K. ^{[1
]}

机构：

[1] Univ Debrecen, Dept Theoret Phys, POB 5, H-4010 Debrecen, Hungary

来源：

PHYSICAL REVIEW D | 2016年 / 94卷 / 06期

关键词：

RENORMALIZATION-GROUP EQUATION; DERIVATIVE EXPANSION; CRITICAL EXPONENTS; FIELD-THEORY;

D O I：

10.1103/PhysRevD.94.065037

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

The phase structure and the infrared behavior of the Euclidean three-dimensional O(2) symmetric ghost scalar field. has been investigated in Wegner and Houghton's renormalization group framework, including higher derivatives in the kinetic term. It is pointed out that higher-derivative coupling provides three phases and leads to a triple point in that RG scheme. The types of the phase transitions have also been identified.

引用

页数：8