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arxiv: hep-th/9909062 · v2 · submitted 1999-09-10 · ✦ hep-th

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Supersymmetric World-volume Action for Non-BPS D-branes

Ashoke Sen
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classification ✦ hep-th
keywords actionworld-volumed-branesnon-bpssymmetriesbackgroundbrokenbulk
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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.

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Cited by 1 Pith paper

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  1. Mapping Tachyon effective field theory to a subsector of Klein-Gordon theory

    hep-th 2026-04 unverdicted novelty 5.0

    Tachyon EFT near its minimum is mapped via collective field theory to a coherent-state subsector of Klein-Gordon theory, indicating quantum-level equivalence between open and closed string descriptions of unstable D-b...