Stability of the Universe Model Coupled with Phantom and Tachyon Fields

Joint Authors

Sharif, M.
Mumtaz, Saadia

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

Physics

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