Effect of reheating on predictions following multiple-field inflation
Effect of reheating on predictions following multiple-field inflation
复制标题
再加热对多场膨胀后预测的影响
DOI:
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复制
发表时间:
2017
期刊:
影响因子:
--
通讯作者:
E. Tarrant
中科院分区:
文献类型:
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作者:
Selim C. Hotinli;J. Frazer;A. Jaffe;Joel Meyers;Layne Price;E. Tarrant
We study the sensitivity of cosmological observables to the reheating phase following inflation driven by many scalar fields. We describe a method which allows semianalytic treatment of the impact of perturbative reheating on cosmological perturbations using the sudden decay approximation. Focusing on $\mathcal{N}$-quadratic inflation, we show how the scalar spectral index and tensor-to-scalar ratio are affected by the rates at which the scalar fields decay into radiation. We find that for certain choices of decay rates, reheating following multiple-field inflation can have a significant impact on the prediction of cosmological observables.
影响因子:
6.4
作者:
Hardwick R
通讯作者:
Hardwick R
影响因子:
5
作者:
Assadullahi H
通讯作者:
Assadullahi H
影响因子:
6.4
作者:
Frazer J
通讯作者:
Frazer J