Closed String Tachyons and RG flows

Abstract

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.

9 pages

References in corpus (8)

• Don't Panic! Closed String Tachyons in ALE Spacetimes
• Closed String Tachyon Condensation on Twisted Circles
• Properties of String Theory on Kaluza-Klein Melvin Background
• Domain Wall and de Sitter Solutions of Gauged Supergravity
• Melvin Background in Heterotic Theories
• Closed String Tachyons in Non-supersymmetric Heterotic Theories
• Charged Tachyons and Gauge Symmetry Breaking
• Unstable magnetic fluxes in heterotic string theory

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• Comments on the Fate of unstable orbifolds
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• Localized tachyon mass and a g-theorem analogue
• Closed string tachyon potential and $t{t}^{\ast }$ equation
• Toda systems in closed string tachyon condensation