Tachyon potentials from a supersymmetric FRW model
High Energy Physics - Theory
2014-02-05 v2 General Relativity and Quantum Cosmology
Abstract
Considering that the effective theory of closed string tachyons can have worldsheet supersymmetry, as shown by Vafa, we study a worldline supersymmetric action in a FRW background, whose superpotential originates a tachyon scalar potential. There are such potentials with spontaneously broken supersymmetry at the instability and supersymmetric after tachyon condensation. Furthermore, given a tachyonic potential, the superpotential can be computed by a power series ansatz and has a free parameter which can be chosen such that complex solutions become real.
Keywords
Cite
@article{arxiv.1401.0098,
title = {Tachyon potentials from a supersymmetric FRW model},
author = {G. García-Jiménez and C. Ramírez and V. Vázquez-Báez},
journal= {arXiv preprint arXiv:1401.0098},
year = {2014}
}
Comments
13 pages, 2 figures