Quantum corrections in Galileon theories

被引：36

作者：

Brouzakis, N. ^{[1
]}

Codello, A. ^{[2
]}

Tetradis, N. ^{[1
,3
]}

Zanusso, O. ^{[4
]}

机构：

[1] Univ Athens, Dept Phys, Zografos 15784, Greece

[2] SISSA, I-34136 Trieste, Italy

[3] CERN, Dept Phys, Div Theory, CH-1211 Geneva 23, Switzerland

[4] Radboud Univ Nijmegen, Inst Math Astrophys & Particle Phys, NL-6525 AJ Nijmegen, Netherlands

来源：

PHYSICAL REVIEW D | 2014年 / 89卷 / 12期

关键词：

GEOMETRY;

D O I：

10.1103/PhysRevD.89.125017

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

We calculate the one-loop quantum corrections in the cubic Galileon theory, by using cutoff regularization. We confirm the expected form of the one-loop effective action and that the couplings of the Galileon theory do not get renormalized. However, new terms, not included in the tree-level action, are induced by quantum corrections. We also consider the one-loop corrections in an effective brane theory, which belongs to the Horndeski or generalized Galileon class. We find that new terms are generated by quantum corrections, while the tree-level couplings are also renormalized. We conclude that the structure of the generalized Galileon theories is altered by quantum corrections more radically than that of the Galileon theory.

引用

页数：7

共 22 条

[1] Effective string theory and nonlinear Lorentz invariance [J].