Non-singular cosmology using tachyon and general non-minimal kinetic coupling

Details Non-singular cosmology using tachyon and general non-minimal kinetic coupling Non-singular cosmology using tachyon and general non-minimal kinetic coupling

Apr 2012

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=2012ap%26ss.338..319b&link_type=abstract

Astrophysics and Space Science, Volume 338, Issue 2, pp.319-326

Astronomy and Astrophysics

Astrophysics

Bouncing Universe, Non-Minimal Derivative Coupling, Tachyon Field

Scientific paper

The bounce with non-minimal coupling is very interesting topic because in the early time, general relativity is likely to be modified, which can give some valuable effects to the evolution of our universe. In this paper we introduce a string-inspired model for bouncing universe, utilizing the tachyon field as well as contributions from general non-minimal kinetic couplings and curvature. It is shown numerically that the bouncing solution appears in the model whereas the equation of state (EoS) parameter crosses the phantom divider.

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