期刊文献

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

De Satter Universe和通货膨胀的量子衰减，在1 + 1维度内没有微调
原文求助 发布源
作者
M. Yoshimura*
作者单位
Department of Physics, Tohoku University, Sendai 980, Japan
发布日期
1993-06-15
DOI
10.1103/PhysRevD.47.5389
来源信息
Physical Review D ISSN：1550-7998, 1993年, 47卷, 12期
摘要
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.
摘要译文
在de Sitter时空演化模型中研究了反应的问题。在狄拉顿重力理论的主要半经典近似中表明，量子纠正引起de Sitter时空的衰变，而不会遇到曲率奇异性。作为一个应用，这个模型可以作为通货膨胀情景的原型，然后是一个没有宇宙常数微调问题的热大爆炸。
M. Yoshimura* . Quantum decay of a de Sitter universe and inflation without fine-tuning in 1 + 1 dimensions[J]. Physical Review D, 1993,47(12)