Space-time noncommutative theories at finite temperature

被引：11
|
作者：
Strelchenko, A. V. [1 ]
Vassilevich, D. V.
机构：
[1] Dnepropetrovsk Natl Univ, UA-49050 Dnepropetrovsk, Ukraine
[2] Univ Sao Paulo, Inst Fis, BR-05315970 Sao Paulo, Brazil
来源：
PHYSICAL REVIEW D | 2007年 / 76卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.76.065014
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
We analyze renormalization and the high-temperature expansion of the one-loop effective action of the space-time noncommutative phi(4) theory by using the zeta-function regularization in the imaginary-time formalism (i.e., on S-1 x R-3). Interestingly enough, there are no mixed (nonplanar) contributions to the counterterms as well as to the power-law high-temperature asymptotics. We also study the Wick rotation and formulate assumptions under which the real and imaginary-time formalisms are equivalent.
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页数：12
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