ASYMPTOTIC FREEDOM FROM INDUCED GRAVITY COSMOLOGY

Authors
CAPOZZIELLO S DERITIS R
Citation
S. Capozziello et R. Deritis, ASYMPTOTIC FREEDOM FROM INDUCED GRAVITY COSMOLOGY, Physics letters. A, 208(3), 1995, pp. 181-187
Citations number
26
Categorie Soggetti
Physics
Journal title
Physics letters. A → ACNP
ISSN journal
03759601
Volume
208
Issue
3
Year of publication
1995
Pages
181 - 187
Database
ISI
SICI code
0375-9601(1995)208:3<181:AFFIGC>2.0.ZU;2-8
Abstract
We give conditions to obtain cosmological asymptotic freedom in scalar -tensor theories of gravity. We show that this feature can be achieved in FRW flat spacetimes since we obtain singularity free solutions whe re the effective gravitational constant G(eff) --> 0 for t --> -infini ty and, for some of them, G(eff) --> G(N) for t --> infinity, where G( N) is the Newton constant.