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A Simple Analytic Solution for Tachyon Condensation

High Energy Physics - Theory 2009-11-05 v1

Abstract

In this paper we present a new and simple analytic solution for tachyon condensation in open bosonic string field theory. Unlike the B_0 gauge solution, which requires a carefully regulated discrete sum of wedge states subtracted against a mysterious "phantom" counter term, this new solution involves a continuous integral of wedge states, and no regularization or phantom term is necessary. Moreover, we can evaluate the action and prove Sen's conjecture in a mere few lines of calculation.

Keywords

Cite

@article{arxiv.0906.0979,
  title  = {A Simple Analytic Solution for Tachyon Condensation},
  author = {Theodore Erler and Martin Schnabl},
  journal= {arXiv preprint arXiv:0906.0979},
  year   = {2009}
}

Comments

44 pages,

R2 v1 2026-06-21T13:09:46.919Z