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.
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页码:754 / 757
页数:4
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