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arXiv · 1308.4400

Analytic Solution for Tachyon Condensation in Berkovits' Open Superstring Field Theory

Theodore Erler
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Abstract

We present an analytic solution for tachyon condensation on a non-BPS D-brane in Berkovits' open superstring field theory. The solution is presented as a product of $2\times 2$ matrices in two distinct $GL_2$ subgroups of the open string star algebra. All string fields needed for computation of the nonpolynomial action can be derived in closed form, and the action produces the expected non-BPS D-brane tension in accordance with Sen's conjecture. We also comment on how D-brane charges may be encoded in the topology of the tachyon vacuum gauge orbit.

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Theodore Erler. 2013-09-17. Analytic Solution for Tachyon Condensation in Berkovits' Open Superstring Field Theory. https://doi.org/10.1007/jhep11(2013)007

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