Stable small spatial hairs in a power-law k-inflation model
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The European Physical Journal C
2021
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| Online Access: | https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-021-08866-7 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1745 https://doi.org/10.1140/epjc/s10052-021-08866-7 https://doi.org/10.1140/epjc/s10052-021-08866-7 |
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oai:localhost:PNK-17452022-08-17T05:54:44Z Stable small spatial hairs in a power-law k-inflation model Tuan Q. Do Q1 In this paper, we extend our investigation of the validity of the cosmic no-hair conjecture within non-canonical anisotropic inflation. As a result, we are able to figure out an exact Bianchi type I solution to a power-law k-inflation model in the presence of unusual coupling between scalar and electromagnetic fields as −f2(ϕ)FμνFμν/4. Furthermore, stability analysis based on the dynamical system method indicates that the obtained solution does admit stable and attractive hairs during an inflationary phase and therefore violates the cosmic no-hair conjecture. Finally, we show that the corresponding tensor-to-scalar ratio of this model turns out to be highly consistent with the observational data of the Planck 2018. 2021-06-14T07:36:58Z 2021-06-14T07:36:58Z 2021 Article Working Paper https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-021-08866-7 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1745 https://doi.org/10.1140/epjc/s10052-021-08866-7 https://doi.org/10.1140/epjc/s10052-021-08866-7 en application/pdf The European Physical Journal C |
| institution |
Digital Phenikaa |
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Digital Phenikaa |
| language |
English |
| description |
Q1 |
| format |
Article |
| author |
Tuan Q. Do |
| spellingShingle |
Tuan Q. Do Stable small spatial hairs in a power-law k-inflation model |
| author_facet |
Tuan Q. Do |
| author_sort |
Tuan Q. Do |
| title |
Stable small spatial hairs in a power-law k-inflation model |
| title_short |
Stable small spatial hairs in a power-law k-inflation model |
| title_full |
Stable small spatial hairs in a power-law k-inflation model |
| title_fullStr |
Stable small spatial hairs in a power-law k-inflation model |
| title_full_unstemmed |
Stable small spatial hairs in a power-law k-inflation model |
| title_sort |
stable small spatial hairs in a power-law k-inflation model |
| publisher |
The European Physical Journal C |
| publishDate |
2021 |
| url |
https://link.springer.com/article/10.1140%2Fepjc%2Fs10052-021-08866-7 https://dlib.phenikaa-uni.edu.vn/handle/PNK/1745 https://doi.org/10.1140/epjc/s10052-021-08866-7 https://doi.org/10.1140/epjc/s10052-021-08866-7 |
| _version_ |
1751856250460569600 |
| score |
8.891145 |