The solution of tachyon inflation in curved universe

Details The solution of tachyon inflation in curved universe The solution of tachyon inflation in curved universe

2008-09-16

arxiv.org/abs/0809.2678v1

Int.J.Theor.Phys.48:14-21,2009

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

8 pages, 21 figures

Scientific paper

10.1007/s10773-008-9776-0

In this paper, we have considered the curved universe which is filled by tachyonic field. We have found the exact solutions for the field, pressure, density, and scale factor and some cosmological parameters. In such universe, we have investigated the role of tachyonic field in different stages of k for the evolution of the universe. Finally we draw the graphs for the scale factor, Hubble's parameter, energy density, pressure, acceleration parameter, equation of state and potential for the different values of k. Also we obtained the exact form of field which shows that the tachyonic field has the kink form.

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