tt* Geometry and Closed String Tachyon Potential

Details tt* Geometry and Closed String Tachyon Potential tt* Geometry and Closed String Tachyon Potential

2001-11-16

arxiv.org/abs/hep-th/0111155v1

JHEP 0202 (2002) 008

Physics

High Energy Physics

High Energy Physics - Theory

10 pages

Scientific paper

10.1088/1126-6708/2002/02/008

We propose a closed string tachyon action including kinetic and potential terms for non-supersymmetric orbifolds. The action is given in terms of solutions to $tt^*$ equations which captures the geometry of vacua of the corresponding N=2 worldsheet theory. In certain cases the solutions are well studied. In case of tachyons of ${\bf C}/Z_n$, solutions to affine toda equations determine the action. We study the particular case of ${\bf C}/Z_3\to {\bf C}$ in detail and find that the Tachyon action is determined in terms of a solution to Painleve III equation.

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