Quantum decay of a de Sitter universe and inflation without fine-tuning in 1 + 1 dimensions

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

The problem of back reaction is investigated in a model of evolving de Sitter spacetime. It is shown in the leading semiclassical approximation to a dilaton gravity theory that a quantum correction gives rise to a decay of a de Sitter spacetime without encountering a curvature singularity. As an application this model may serve as a prototype of the inflationary scenario followed by a hot big bang free from the fine-tuning problem of a cosmological constant.

Original languageEnglish
Pages (from-to)5389-5393
Number of pages5
JournalPhysical Review D
Volume47
Issue number12
DOIs
Publication statusPublished - 1993
Externally publishedYes

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universe
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ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Quantum decay of a de Sitter universe and inflation without fine-tuning in 1 + 1 dimensions. / Yoshimura, Motohiko.

In: Physical Review D, Vol. 47, No. 12, 1993, p. 5389-5393.

Research output: Contribution to journalArticle

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