Abstract
Effect 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.
Highlights
If the early universe was induced by anisotropic inflation, we would like to find out the late-time state of universe
Effect of non-canonical scalar fields on the cosmic microwave background radiation (CMB) imprints of the anisotropic inflation has been discussed in details in this article
By using the Bunch-Davies (BD) vacuum state for the non-canonical scalar field [104], we have obtained a general formalism of tensor-to-scalar ratio as well as a general formalism of the angular power spectra in the scalar perturbations, tensor perturbations, cross-correlations, and linear polarization for the anisotropic inflationary model with non-canonical scalar field
Summary
If the early universe was induced by anisotropic inflation, we would like to find out the late-time state of universe. The new set of solutions has been shown to disfavor the cosmic no-hair conjecture This result is still valid when a canonical scalar field of the KSW model is replaced by non-canonical models such as the Dirac–Born– Infeld (DBI) field [49,50,51], the supersymmetric Dirac–Born–. We propose to study the correlations of T , E, and B modes in non-canonical anisotropic inflation, e.g., the DBI and SDBI models [49,50,51,52,53] to see how the noncanonical terms of scalar field affect the results in the KSW model [85,86,87,88,89,90].
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
