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Ghost Dark Energy in the DGP Braneworld
Joint Authors
Zadeh, M. Abdollahi
Sheykhi, A.
Source
Advances in High Energy Physics
Issue
Vol. 2018, Issue 2018 (31 Dec. 2018), pp.1-10, 10 p.
Publisher
Hindawi Publishing Corporation
Publication Date
2018-10-14
Country of Publication
Egypt
No. of Pages
10
Main Subjects
Abstract EN
We investigate the ghost model of dark energy in the framework of DGP braneworld.
We explore the cosmological consequences of this model by determining the equation of state parameter, ωD, the deceleration, and the density parameters.
We also examine the stability of this model by studying the squared of the sound speed in the presence/absence of interaction term between dark energy and dark matter.
We find out that in the absence of interaction between two dark sectors of the universe we have ωD→-1 in the late time, while in the presence of interaction ωD can cross the phantom line -1.
In both cases the squared of sound speed vs2 does not show any signal of stability.
We also determine the statefinder diagnosis of this model as well as the ωD-ωD′ plane and compare the results with the ΛCDM model.
We find that ωD-ωD′ plane meets the freezing region in the absence of interaction between two dark sectors, while it meets both the thawing and the freezing regions in the interacting case.
American Psychological Association (APA)
Zadeh, M. Abdollahi& Sheykhi, A.. 2018. Ghost Dark Energy in the DGP Braneworld. Advances in High Energy Physics،Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1117974
Modern Language Association (MLA)
Zadeh, M. Abdollahi& Sheykhi, A.. Ghost Dark Energy in the DGP Braneworld. Advances in High Energy Physics No. 2018 (2018), pp.1-10.
https://search.emarefa.net/detail/BIM-1117974
American Medical Association (AMA)
Zadeh, M. Abdollahi& Sheykhi, A.. Ghost Dark Energy in the DGP Braneworld. Advances in High Energy Physics. 2018. Vol. 2018, no. 2018, pp.1-10.
https://search.emarefa.net/detail/BIM-1117974
Data Type
Journal Articles
Language
English
Notes
Includes bibliographical references
Record ID
BIM-1117974