A RENORMALIZATION-GROUP IMPROVED NONLOCAL GRAVITATIONAL EFFECTIVE LAGRANGIAN

被引：14
|
作者：
ELIZALDE, E
ODINTSOV, SD
机构：
[1] UNIV BARCELONA, FAC PHYS, DEPT ECM, E-08028 BARCELONA, SPAIN
[2] UNIV BARCELONA, FAC PHYS, DEPT IFAE, E-08028 BARCELONA, SPAIN
来源：
MODERN PHYSICS LETTERS A | 1995年 / 10卷 / 25期
关键词：
D O I：
10.1142/S0217732395001952
中图分类号：
P1 [天文学];
学科分类号：
0704 ;
摘要：
Renormalization group techniques are used in order to obtain the improved nonlocal gravitational effective action corresponding to any asymptotically free GUT, up to invariants which are quadratic on the curvature. The corresponding nonlocal gravitational equations are written down, both for the case of asymptotically free GUTs and also for quantum R(2)-gravity. The implications of the results when obtaining the flux of vacuum radiation through the future null infinity are briefly discussed.
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页码：1821 / 1828
页数：8
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