Exact solution of a tachyon oscillating cosmology with a supergravity tracking potential
College of Mathematics and Information Science, Neijiang Normal University, 641112, Neijiang, China
Accepted: 3 May 2013
Published online: 29 May 2013
In this communication, we investigate the late-time dynamics of a tachyon cosmological model in the presence of a supergravity tracking potential. By assuming a particular relation between the Hubble parameter, the tachyon scalar field and its time derivative, an exact solution of the model is constructed. It was observed that the universe is oscillating with time and dominated by an oscillating tachyon field. Special properties and features were derived accordingly.
© Società Italiana di Fisica and Springer-Verlag Berlin Heidelberg, 2013