RUNNING COUPLING-CONSTANTS, NEWTONIAN POTENTIAL, AND NONLOCALITIES IN THE EFFECTIVE ACTION

被引:47
作者
DALVIT, DAR
MAZZITELLI, FD
机构
[1] Departamento de Física, Facultad de Ciencias Exactas y Naturales, Universidad de Buenos Aires-Ciudad Universitaria
[2] Instituto de Astronomía y Física del Espacio, 1428 Buenos Aires, Casilla de Correo 67
关键词
D O I
10.1103/PhysRevD.50.1001
中图分类号
P1 [天文学];
学科分类号
0704 ;
摘要
We consider a quantum scalar field on an arbitrary gravitational background. We obtain the effective in-in equations for the gravitational fields using a covariant and nonlocal approximation for the effective action proposed by Vilkovisky and collaborators. From these equations, we compute the quantum corrections to the Newtonian potential. We find logarithmic corrections which we identify as the running of the gravitational constants. This running coincides with the renormalization group prediction only for minimal and conformal coupling.
引用
收藏
页码:1001 / 1009
页数:9
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