Finite-temperature φ4 theory from the 2PI effective action:: Two-loop truncation

被引：4

作者：

Arrizabalaga, A.

Reinosa, U.

机构：

[1] NIKHEF, NL-1098 SJ Amsterdam, Netherlands

[2] Univ Heidelberg, Inst Theoret Phys, D-69120 Heidelberg, Germany

来源：

EUROPEAN PHYSICAL JOURNAL A | 2007年 / 31卷 / 04期

关键词：

D O I：

10.1140/epja/i2007-10008-4

中图分类号：

O57 [原子核物理学、高能物理学];

学科分类号：

070202 ;

摘要：

Using resummation techniques based on the 2PI effective action we study the scalar phi(4) theory at finite temperature. We present an analytical as well as numerical study for a renormalized two-loop truncation of the action. Both the spectral properties and critical behaviour of the theory are investigated. Within the truncation, we explicitly check that the physical observables are UV-finite.

引用

页码：754 / 757

页数：4

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