INITIAL SINGULARITY-FREE QUANTUM COSMOLOGY IN 2-DIMENSIONAL BRANS-DICKE THEORY - ART. NO. 084014

Authors
KIM WT YOON MS
Citation
Wt. Kim et Ms. Yoon, INITIAL SINGULARITY-FREE QUANTUM COSMOLOGY IN 2-DIMENSIONAL BRANS-DICKE THEORY - ART. NO. 084014, Physical review. D. Particles and fields, 5808(8), 1998, pp. 4014
Citations number
19
Categorie Soggetti
Physics, Particles & Fields
Journal title
Physical review. D. Particles and fields → ACNP
ISSN journal
05562821
Volume
5808
Issue
8
Year of publication
1998
Database
ISI
SICI code
0556-2821(1998)5808:8<4014:ISQCI2>2.0.ZU;2-8
Abstract
We consider two-dimensional Brans-Dicke theory to study the initial si ngularity problem. It turns out that the initial curvature singularity can be finite for a certain Brans-Dicke constant omega by considering the quantum back reaction of the geometry. For omega = 1, the univers e starts with the finite curvature scalar and evolves into flat spacet ime. Furthermore the divergent gravitational coupling at initial time can be finite effectively with the help of quantum correction. The oth er type of universe is studied for the case of 0<omega<1. [S0556-2821( 98)02218-8].