Violation of slow-roll in nonminimal inflation
Violation of slow-roll in nonminimal inflation
复制标题
违反非最小通胀中的慢滚动
DOI:
10.1103/physrevd.102.043524
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发表时间:
2020
影响因子:
5
通讯作者:
Yokoyama Shuichiro
中科院分区:
文献类型:
--
作者:
Takahashi Tomo;Tenkanen Tommi;Yokoyama Shuichiro
We show that a nonminimal coupling to gravity can not only make some inflationary models consistent with cosmological data, similar to the case of Higgs inflation, but can also invoke slow-roll violation to realize a graceful exit from inflation. In particular, this is the case in models where a destabilizing mechanism that ends inflation should be assumed when the model is minimally coupled to gravity. As explicit examples, we consider the power-law and inverse monomial inflation models with a nonminimal coupling to gravity. While these models are excluded in the minimally coupled case, we show that they can become viable again in nonminimally coupled scenarios. In most scenario we considered, reheating can be naturally realized via gravitational particle production but this depends on the underlying theory of gravity in a nontrivial way reheating can be naturally realized via gravitational particle production but that this depends on the underlying theory of gravity in a nontrivial way.
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影响因子:
5
作者:
A. Kaganovich
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影响因子:
5
作者:
D. Langlois;F. Vernizzi
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DOI:
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发表时间:
2001
期刊:
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--
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发表时间:
1993
期刊:
Physical Review D, Particles and fields
影响因子:
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作者:
J. Barrow;A. Liddle
通讯作者:
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DOI:
10.1016/s0927-6505(98)00057-7
发表时间:
1997
期刊:
影响因子:
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作者:
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