Gravitational Field of the Early Universe: I.Non-linear Scalar Field as the Source

Details Gravitational Field of the Early Universe: I.Non-linear Scalar Field as the Source Gravitational Field of the Early Universe: I.Non-linear Scalar Field as the Source

1997-06-10

arxiv.org/abs/gr-qc/9706028v1

Grav.Cosmol. 3 (1997) 145-150

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

6 pages, Latex, submitted to: Grav. and Cosmol

Scientific paper

In this review article we consider three most important sources of the gravitational field of the Early Universe: self-interacting scalar field, chiral field and gauge field. The correspondence between all of them are pointed out. More attention is payed to nonlinear scalar field source of gravity. The progress in finding the exact solutions in inflationary universe is reviewed. The basic idea of `fine turning of the potential' method is discussed and computational background is presented in details. A set of new exact solutions for standard inflationary model and conformally-flat space-times are obtained. Special attention payed to relations between `fine turning of the potential' and Barrow's approaches. As the example of a synthesis of both methods new exact solution is obtained.

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