Proof of vanishing cohomology at the tachyon vacuum

By I. Ellwood, M. Schnabl. 2006

153 citations recorded by the source corpus.

We prove Sen's third conjecture that there are no on-shell perturbative excitations of the tachyon vacuum in open bosonic string field theory. The proof relies on the existence of a special state A, which, when acted on by the BRST operator at the tachyon vacuum, gives the identity. While this state was found numerically in Feynman-Siegel gauge, here we give a simple analytic expression.

Subfields: Astronomy and Astrophysics, Nuclear and High Energy Physics, Statistical and Nonlinear Physics

View Paper: https://www.semanticscholar.org/paper/87c66ddd6cbc3e0f8b81ebbd0316b98ecb0307dc

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In Astronomy and Astrophysics

1. Theodore Erler
2. M. Schnabl
3. Y. Okawa

In Nuclear and High Energy Physics

1. Theodore Erler
2. M. Schnabl
3. Y. Okawa

In Statistical and Nonlinear Physics

1. Theodore Erler
2. M. Schnabl
3. Y. Okawa

Citations in the corpus

• A simple analytic solution for tachyon condensation (2009, background): “Following [18, 19], this follows if there exists a string field A (the homotopy operator) satisfying QΨA = 1, (2.”