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arXiv · 1401.0098

Tachyon potentials from a supersymmetric FRW model

G. García-Jiménez·C. Ramírez·V. Vázquez-Báez
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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.

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G. García-Jiménez, C. Ramírez, V. Vázquez-Báez. 2013-12-31. Tachyon potentials from a supersymmetric FRW model. https://doi.org/10.1103/physrevd.89.043501

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