CMB imprints of non-canonical anisotropic inflation-Reference-Cited by-同舟云学术

CMB imprints of non-canonical anisotropic inflation

Published:2021-05 Issue:5 Volume:81 Page:
ISSN:1434-6044
Container-title:The European Physical Journal C
language:en
Short-container-title:Eur. Phys. J. C

Author:

Do Tuan Q.,Kao W. F.,Lin Ing-Chen

Abstract

AbstractEffect of non-canonical scalar fields on the CMB imprints of the anisotropic inflation will be discussed in details in this paper. In particular, we are able to obtain the general formalism of the angular power spectra in the scalar perturbations, tensor perturbations, cross-correlations, and linear polarization in the context of the anisotropic inflation model involving non-canonical scalar fields. Furthermore, some significant numerical spectra will be plotted using the most recent data of Planck as well as the BICEP2 and Keck array. As a result, we find a very interesting point that the TT spectra induced by the tensor perturbations as well as by the linear polarization will increase when the speed of sound decreases.

Funder

National Foundation for Science and Technology Development

Ministry of Science and Technology, Taiwan

Publisher

Springer Science and Business Media LLC

Subject

Physics and Astronomy (miscellaneous),Engineering (miscellaneous)

Link

https://link.springer.com/content/pdf/10.1140/epjc/s10052-021-09181-x.pdf

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