Stability of the Universe Model Coupled with Phantom and Tachyon Fields
Joint Authors
Source
Advances in High Energy Physics
Issue
Vol. 2019, Issue 2019 (31 Dec. 2019), pp.1-16, 16 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2019-07-31
Country of Publication
Egypt
No. of Pages
16
Main Subjects
Abstract EN
In this paper, we study the phase space analysis of locally rotationally symmetric Bianchi type I universe model by taking interactions between dark matter and scalar field models.
We define normalized dimensionless variables to develop an autonomous system of equations.
We also find the corresponding critical points in order to study the dynamics of the system.
The dynamical analysis indicates that all the critical points correspond to accelerated cosmic expansion for tachyon coupled field.
We observe that positive values of m provide more stable future attractors as compared to its negative values.
We also analyze the behavior of power-law scale factor which shows different cosmological phases.
It is found that the region for decelerated expansion gets larger for the phantom coupled matter by increasing m while this region decreases for tachyon coupled field.
American Psychological Association (APA)
Sharif, M.& Mumtaz, Saadia. 2019. Stability of the Universe Model Coupled with Phantom and Tachyon Fields. Advances in High Energy Physics،Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1118327
Modern Language Association (MLA)
Sharif, M.& Mumtaz, Saadia. Stability of the Universe Model Coupled with Phantom and Tachyon Fields. Advances in High Energy Physics No. 2019 (2019), pp.1-16.
https://search.emarefa.net/detail/BIM-1118327
American Medical Association (AMA)
Sharif, M.& Mumtaz, Saadia. Stability of the Universe Model Coupled with Phantom and Tachyon Fields. Advances in High Energy Physics. 2019. Vol. 2019, no. 2019, pp.1-16.
https://search.emarefa.net/detail/BIM-1118327
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1118327