Role of Chaplygin gas as geometrical dark energy in anisotropic brane gravity

Journal Article · Mon Sep 15 04:00:00 EDT 2008 · Physical Review. D, Particles Fields

DOI:https://doi.org/10.1103/PHYSREVD.78.064007· OSTI ID:21254088

Heydari-Fard, Malihe; Sepangi, Hamid R ^[1]

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1. Department of Physics, Shahid Beheshti University, Evin, Tehran 19839 (Iran, Islamic Republic of)

We consider an anisotropic braneworld model with Bianchi type I and V geometry, without mirror symmetry or any form of junction conditions. The generalized Chaplygin gas, which interpolates between a high density relativistic era and a nonrelativistic matter phase, is a popular candidate for the present accelerated expansion of the Universe. Considering the generalized Chaplygin gas as a geometrical dark energy, we obtain the general solutions in an exact parametric form for both Bianchi type I and V space-times. Finally, we study the behavior of the observationally important parameters such as the shear, anisotropic, and deceleration parameters in this model.

• OSTI ID: 21254088
• Journal Information: Physical Review. D, Particles Fields, Journal Name: Physical Review. D, Particles Fields Journal Issue: 6 Vol. 78; ISSN PRVDAQ; ISSN 0556-2821
• Country of Publication: United States
• Language: English

Related Subjects

72 PHYSICS OF ELEMENTARY PARTICLES AND FIELDS
ACCELERATION
ANISOTROPY
DENSITY
EXPANSION
GRAVITATION
MATHEMATICAL SOLUTIONS
NONLUMINOUS MATTER
RELATIVISTIC RANGE
SIMULATION
SPACE-TIME
SYMMETRY
UNIVERSE