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arXiv · 1405.0009

Heterotic NS5-branes from closed string tachyon condensation

Iñaki García-Etxebarria·Miguel Montero·Angel Uranga
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Abstract

We show how to construct the familiar heterotic NS5 brane as a topological soliton in a supercritical version of heterotic string theory. Closed string tachyon condensation removes the extra dimensions, leaving the NS5 in 10d, in a process highly reminiscent of the K-theoretical description of type II D-branes, but linking non-trivial gauge bundles and geometry. The construction requires a modification of the anomalous Bianchi identity for $H_3$ in supercritical heterotic string theory. We give various proofs for the existence of this modification.

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Iñaki García-Etxebarria, Miguel Montero, Angel Uranga. 2014-04-30. Heterotic NS5-branes from closed string tachyon condensation. https://doi.org/10.1103/physrevd.90.126002

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