Cosmic acceleration and Brans-Dicke theory

Journal Article · Mon Oct 15 00:00:00 EDT 2012 · Journal of Experimental and Theoretical Physics

DOI:https://doi.org/10.1134/S1063776112080158· OSTI ID:22069312

Sharif, M; Waheed, S ^[1]

---

1. University of the Punjab, Department of Mathematics (Pakistan)

We study the accelerated expansion of the universe by exploring the Brans-Dicke parameter in different eras. For this, we take the FRW universe model with a viscous fluid (without potential) and the Bianchi type-I universe model with a barotropic fluid (with and without a potential). We evaluate the deceleration parameter and the Brans-Dicke parameter to explore cosmic acceleration. It is concluded that accelerated expansion of the universe can also be achieved for higher values of the Brans-Dicke parameter in some cases.

• OSTI ID: 22069312
• Journal Information: Journal of Experimental and Theoretical Physics, Vol. 115, Issue 4; Other Information: Copyright (c) 2012 Pleiades Publishing, Ltd.; Country of input: International Atomic Energy Agency (IAEA); ISSN 1063-7761
• Country of Publication: United States
• Language: English

Related Subjects

79 ASTROPHYSICS
COSMOLOGY AND ASTRONOMY
ACCELERATION
BRANES
COSMOLOGY
INFLATIONARY UNIVERSE
POTENTIALS
UNIVERSE