Astronomy and Astrophysics – Astrophysics – General Relativity and Quantum Cosmology
Scientific paper
1998-03-14
Class.Quant.Grav. 16 (1999) 1545-1563
Astronomy and Astrophysics
Astrophysics
General Relativity and Quantum Cosmology
20 pages, Plain Tex, references added and expanded the previous version of article, 2 figures available from dlohiya@ducos.ern
Scientific paper
10.1088/0264-9381/16/5/306
A search for a problem free cosmology within the framework of an effective non - minimally coupled scalar tensor theory is suggested. With appropriate choice of couplings in variants of a Lee - Wick model [as also in a model supporting Q - ball solutions], non topological solutions [NTS's], varying in size upto 10 kpc to 1 Mpc can exist. We explore the properties of a ``toy'' Milne model containing a distribution of NTS domains. The interior of these domains would be regions where effective gravitational effects would be indistinguishable from those expected in standard Einstein theory. For a large class of non - minimal coupling terms and the scalar effective potential, the effective cosmological constant identically vanishes. The model passes classical cosmological tests and we describe reasons to expect it to fare well as regards nucleosynthesis and structure formation.
Lohiya Daksh
Sethi Meetu
No associations
LandOfFree
A program for a problem free Cosmology within a framework of a rich class of scalar tensor theories does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.
If you have personal experience with A program for a problem free Cosmology within a framework of a rich class of scalar tensor theories, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and A program for a problem free Cosmology within a framework of a rich class of scalar tensor theories will most certainly appreciate the feedback.
Profile ID: LFWR-SCP-O-542379