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Anisotropic hyperbolic inflation for a model of two scalar and two vector fields

In this paper, we extend a recent proposed model of two scalar and two vector fields to a hyperbolic inflation scenario, in which the field space of two scalar fields is a hyperbolic space instead of a flat space. In this model, one of the scalar fields is assumed to be a radial field, while the oth...

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Main Authors: Tuan Q. Do, W. F. Kao
Format: Bài trích
Language:English
Published: Springer 2022
Subjects:
Hyperbolic
Physical Chemistry
Online Access:https://link.springer.com/article/10.1140/epjc/s10052-022-10078-6
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5946
https://doi.org/10.1140/epjc/s10052-022-10078-6
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spelling oai:localhost:PNK-59462022-08-17T05:54:50Z Anisotropic hyperbolic inflation for a model of two scalar and two vector fields Tuan Q. Do W. F. Kao Hyperbolic Physical Chemistry In this paper, we extend a recent proposed model of two scalar and two vector fields to a hyperbolic inflation scenario, in which the field space of two scalar fields is a hyperbolic space instead of a flat space. In this model, one of the scalar fields is assumed to be a radial field, while the other is set as an angular field. Furthermore, both scalar fields will be coupled to two different vector fields, respectively. As a result, we are able to obtain a set of exact Bianchi type I solutions to this model. Stability analysis is also performed to show that this set of anisotropic solutions is indeed stable and attractive during the inflationary phase. This result indicates that the cosmic no-hair conjecture is extensively violated in this anisotropic hyperbolic inflation model 2022-07-13T02:00:02Z 2022-07-13T02:00:02Z 2022 Bài trích https://link.springer.com/article/10.1140/epjc/s10052-022-10078-6 https://dlib.phenikaa-uni.edu.vn/handle/PNK/5946 https://doi.org/10.1140/epjc/s10052-022-10078-6 en Springer
institution Digital Phenikaa
collection Digital Phenikaa
language English
topic Hyperbolic
Physical Chemistry
spellingShingle Hyperbolic
Physical Chemistry
Tuan Q. Do
W. F. Kao
Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
description In this paper, we extend a recent proposed model of two scalar and two vector fields to a hyperbolic inflation scenario, in which the field space of two scalar fields is a hyperbolic space instead of a flat space. In this model, one of the scalar fields is assumed to be a radial field, while the other is set as an angular field. Furthermore, both scalar fields will be coupled to two different vector fields, respectively. As a result, we are able to obtain a set of exact Bianchi type I solutions to this model. Stability analysis is also performed to show that this set of anisotropic solutions is indeed stable and attractive during the inflationary phase. This result indicates that the cosmic no-hair conjecture is extensively violated in this anisotropic hyperbolic inflation model
format Bài trích
author Tuan Q. Do
W. F. Kao
author_facet Tuan Q. Do
W. F. Kao
author_sort Tuan Q. Do
title Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
title_short Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
title_full Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
title_fullStr Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
title_full_unstemmed Anisotropic hyperbolic inflation for a model of two scalar and two vector fields
title_sort anisotropic hyperbolic inflation for a model of two scalar and two vector fields
publisher Springer
publishDate 2022
url https://link.springer.com/article/10.1140/epjc/s10052-022-10078-6
https://dlib.phenikaa-uni.edu.vn/handle/PNK/5946
https://doi.org/10.1140/epjc/s10052-022-10078-6
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score 8.891787

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