Closed String Tachyons and RG flows

Details Closed String Tachyons and RG flows Closed String Tachyons and RG flows

2002-10-07

arxiv.org/abs/hep-th/0210054v1

JHEP 0210 (2002) 051

Physics

High Energy Physics

High Energy Physics - Theory

9 pages

Scientific paper

10.1088/1126-6708/2002/10/051

We consider bulk tachyon condensations in a non-linear sigma model whose low energy effective theory contains a nontrivial scalar potential. We argue that one would typically encounter a strong coupling background along a RG flow corresponding to a bulk tachyon condensation, beyond which the RG analysis would not be reliable. In a range of the flow in which the string coupling constant is small, we can show that the tachyon condensation actually decreases the central charge of the sigma model.

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