Reconstructing the Equation of State of Tachyon
High Energy Physics - Theory
2009-11-07 v1 General Relativity and Quantum Cosmology
Abstract
Recent progress in theoretical physics suggests that the dark energy in the universe might be resulted from the rolling tachyon field of string theory. Measurements to SNe Ia can be helpful to reconstruct the equation of state of the rolling tachyon which is a possible candidate of dark energy. We present a numerical analysis for the evolution of the equation of state of the rolling tachyon and derive the reconstruction equations for the equation of state as well as the potential.
Cite
@article{arxiv.hep-th/0209041,
title = {Reconstructing the Equation of State of Tachyon},
author = {Jian-gang Hao and Xin-zhou Li},
journal= {arXiv preprint arXiv:hep-th/0209041},
year = {2009}
}
Comments
6 pages, 3 figures, to appear Phys. Rev. D