PHASE-DIAGRAM OF AN SU(2)XSU(2) SCALAR-FERMION MODEL WITH MASSLESS DECOUPLED DOUBLERS

被引：6

作者：

ALONSO, JL ^{[1
]}

LESMES, F ^{[1
]}

RIVAS, E ^{[1
]}

BOUCAUD, P ^{[1
]}

机构：

[1] UNIV PARIS 11, PHYS THEOR & HAUTES ENERGIES LAB, F-91405 ORSAY, FRANCE

来源：

PHYSICS LETTERS B | 1994年 / 329卷 / 01期

关键词：

D O I：

10.1016/0370-2693(94)90519-3

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We present the phase structure of the chiral SU(2) x SU(2) scalar-fermion model on the lattice using the Zaragoza proposal for chiral fermions. The numerical result agrees with an analytic study based on the use of weak and strong Yukawa coupling expansions combined with the mean-field approach. The phase diagram consists of four phases: paramagnetic (PM), ferromagnetic (FM), antiferromagnetic (AFM) and ferrimagnetic (FI). The transition lines separating these four phases intersect at one. quadruple point.

引用

页码：75 / 80

页数：6

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