A RENORMALIZATION-GROUP IMPROVED NONLOCAL GRAVITATIONAL EFFECTIVE LAGRANGIAN

Authors
ELIZALDE E ODINTSOV SD
Citation
E. Elizalde et Sd. Odintsov, A RENORMALIZATION-GROUP IMPROVED NONLOCAL GRAVITATIONAL EFFECTIVE LAGRANGIAN, Modern physics letters A, 10(25), 1995, pp. 1821-1828
Citations number
32
Categorie Soggetti
Physics, Nuclear","Physics, Particles & Fields","Physycs, Mathematical
Journal title
Modern physics letters A → ACNP
ISSN journal
02177323
Volume
10
Issue
25
Year of publication
1995
Pages
1821 - 1828
Database
ISI
SICI code
0217-7323(1995)10:25<1821:ARINGE>2.0.ZU;2-9
Abstract
Renormalization group techniques are used in order to obtain the impro ved nonlocal gravitational effective action corresponding to any asymp totically free GUT, up to invariants which are quadratic on the curvat ure. The corresponding nonlocal gravitational equations are written do wn, 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 disc ussed.