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Supersymmetric world-volume action for non-BPS D-branes. (English) Zbl 0957.81038

Summary: We construct the world-volume action for non-BPS D-branes in type II string theories. This action is invariant under all the unbroken supersymmetries in the bulk, but these symmetries are realised as spontaneously broken symmetries in the world-volume theory. Coupling of this action to background supergravity fields is straightforward. We also discuss the fate of the U(1) gauge field on the D-brane world-volume after tachyon condensation.

MSC:

81T30 String and superstring theories; other extended objects (e.g., branes) in quantum field theory
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