Simple, exact model of quasisingle field inflation
Simple, exact model of quasisingle field inflation
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简单、精确的准单场膨胀模型
DOI:
10.1103/physrevd.101.063535
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发表时间:
2019
影响因子:
5
通讯作者:
Y. Welling
中科院分区:
文献类型:
--
作者:
Y. Welling
In this note we present a simple but exact model of quasi-single field inflation \cite{Chen:2009zp, Chen:2009we}, in which the couplings between perturbations are completely controlled, and for instance can be made constant with any desired value. This provides a way to numerically implement quasi-single field inflation and to test its predictions in various regimes. We confirm that the numerics agree to good accuracy with the analytical predictions for the isosceles bispectrum and the full shape function.
影响因子:
5
作者:
Achúcarro A
通讯作者:
Achúcarro A