Non - Topological Solitons in non-minimally coupled Scalar fields: Theory and consequences

Details Non - Topological Solitons in non-minimally coupled Scalar fields: Theory and consequences Non - Topological Solitons in non-minimally coupled Scalar fields: Theory and consequences

1994-07-13

arxiv.org/abs/gr-qc/9407014v1

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

Normal TeX, 19 pages, 3 figures available from author

Scientific paper

In theories of gravitation in which dimensional parameters are dynamically induced, one can have non - topological - soliton solutions. This article reviews related topics connected with such solutions. The existence of such solutions in curved spacetime can give rise to halos of gravity (g-) balls with gravitational ``constant" having different values inside and outside the ball. Such g - balls can have quite interesting bearing on the dark matter problem over galactic and cluster scales. We describe the origin of such solutions. We speculate on related problems in Cosmology. Such objects would naturally occur in a large class of induced gravity models in which we have scalar fields non minimally coupled to the scalar curvature.

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