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arXiv · 0906.0979

A Simple Analytic Solution for Tachyon Condensation

Theodore Erler·Martin Schnabl
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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.

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Theodore Erler, Martin Schnabl. 2009-06-05. A Simple Analytic Solution for Tachyon Condensation. https://doi.org/10.1088/1126-6708/2009/10/066

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