The Non-Perturbative SO(32) Heterotic String

Abstract

The SO(32) heterotic string can be obtained from the type IIB string by gauging a discrete symmetry that acts as $(-1{)}^{F_L}$ on the perturbative string states and reverses the parity of the D-string. Consistency requires the presence of 32 NS 9-branes -- the S-duals of D9-branes -- which give SO(32) Chan-Paton factors to open D-strings. At finite string coupling, there are SO(32) charges tethered to the heterotic string world-sheet by open D-strings. At zero-coupling, the D-string tension becomes infinite and the SO(32) charges are pulled onto the world-sheet, and give the usual SO(32) world-sheet currents of the heterotic string.

12 Pages, Tex, Phyzzx Macro

References in corpus (2)

• Gravitational Duality, Branes and Charges
• Anomalies of the SO(32) five-brane and their cancellation

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• A fresh view on string orbifolds
• Open exceptional strings and D-branes
• Spacetime-Filling Branes in Ten and Nine Dimensions
• Truncations of the D9-brane action and type-I strings
• Space-filling branes & gaugings
• Open Strings and Heterotic Instantons