Non-Supersymmetric Deformations of Non-Critical Superstrings
Nissan Itzhaki, David Kutasov, Nathan Seiberg
TL;DR
This paper investigates supersymmetry-breaking deformations in non-critical superstring backgrounds, analyzing the presence of bulk and localized tachyons, and identifying some stable non-supersymmetric solutions.
Contribution
It provides an analysis of non-supersymmetric deformations in linear dilaton backgrounds, including exact worldsheet CFT descriptions of localized tachyon condensation and stable solutions.
Findings
Bulk tachyons in some deformed backgrounds
Localized tachyons and their condensation described by CFT
Existence of stable, non-supersymmetric backgrounds
Abstract
We study certain supersymmetry breaking deformations of linear dilaton backgrounds in different dimensions. In some cases, the deformed theory has bulk closed strings tachyons. In other cases there are no bulk tachyons, but there are localized tachyons. The real time condensation of these localized tachyons is described by an exactly solvable worldsheet CFT. We also find some stable, non-supersymmetric backgrounds.
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