These notes are an expanded version of a review paper on closed string tachyon condensation at the RTN workshop in Copenhagen in September 2003. We begin with a lightning review of open string tachyon condensation, and then proceed to review recent results on localized closed string tachyon condensation, focusing on two simple systems, C / Z n orbifolds and twisted circle compactifications.
No takes yet. Share an insight, caveat, or question.
A 2004 study studied this question.
Synapse has enriched one closely related paper. Consider it for comparative context: