Acceleration of the Universe in Presence of Tachyonic field
Surajit Chattopadhyay, Ujjal Debnath, Goutami Chattopadhyay
TL;DR
This paper explores how a tachyonic field with a specific potential can drive the accelerated expansion of the universe, providing exact solutions and analyzing its role during different evolutionary stages.
Contribution
It presents exact solutions for a universe filled with a tachyonic field and investigates its impact on cosmic acceleration using statefinder parameters.
Findings
Tachyonic field can cause universe acceleration with certain potentials
Exact solutions of field equations are derived for specific potentials
Tachyonic field influences different stages of cosmic evolution
Abstract
In this letter, we have assumed that the Universe is filled in tachyonic field with potential, which gives the acceleration of the Universe. For certain choice of potential, we have found the exact solutions of the field equations. We have shown the decaying nature of potential. From recently developed statefinder parameters, we have investigated the role of tachyonic field in different stages of the evolution of the Universe.
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