Renormalization-group flow equations for Uk and Zk -: art. no. 065010

被引：4
|
作者：
Branchina, V [1 ]
机构：
[1] Univ Strasbourg, Phys Theor Lab, F-67084 Strasbourg, France
来源：
PHYSICAL REVIEW D | 2000年 / 62卷 / 06期
关键词：
D O I：
10.1103/PhysRevD.62.065010
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
By considering the gradient expansion for the Wilsonian effective action S-k of a Single component scalar field theory truncated to the first two terms, the potential U-k and the kinetic term Z(k), I show that the recent claim that different expansions of the fluctuation determinant give rise to different renormalization-group equations for Z(k) is incorrect. The correct procedure to derive this equation is presented and the set of coupled differential equations for U-k and Z(k) is definitely established.
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页数：5
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