Open Inflation With Scalar-tensor Gravity

Details Open Inflation With Scalar-tensor Gravity Open Inflation With Scalar-tensor Gravity

1998-05-25

arxiv.org/abs/hep-th/9805164v3

Phys.Rev. D58 (1998) 107302

Physics

High Energy Physics

High Energy Physics - Theory

10 pages.1 figure. Some comments and references are improved. to be published in PRD

Scientific paper

10.1103/PhysRevD.58.107302

The open inflation model recently proposed by Hawking and Turok is investigated in scalar-tensor gravity context. If the dilaton-like field has no potential, the instanton of our model is singular but has a finite action. The Gibbons-Hawking surface term vanishes and hence, can not be used to make $\Omega_0$ nonzero. To obtain a successful open inflation one should introduce other matter fields or a potential for the dilaton-like fields.

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