Tachyonic decay of unstable Dirichlet branes

Abstract

We consider an unstable bound system of two supersymmetric Dirichlet branes of different dimensionality ($p,p^{\prime }$ with $p^{\prime }<p$) embedded in a flat non-compactified IIA or IIB type background. We study the decay, via tachyonic condensation, of such unstable bound states leading to a pair of bound D$(p-1)$, D$p^{\prime }$-branes. We show that only when the gauge fields carried by the D$p$-brane are localised perependicular to the tachyon direction, then tachyon condensation will indeed take place. We perform our analysis by combining both, the Hamiltonian and the Lagrangian approach.

12 pages; two minor modifications to match version accepted for publication in PRD

References in corpus (8)

• Supersymmetric World-volume Action for Non-BPS D-branes
• T-duality and Actions for Non-BPS D-branes
• Tachyon couplings on non-BPS D-branes and Dirac-Born-Infeld action
• Gauge-Invariant and Gauge-Fixed D-Brane Actions
• Dirac-Born-Infeld Action on the Tachyon Kink and Vortex
• String Fluid from Unstable D-branes
• On the Bound States of p- and (p+2)-Branes
• BPS D-branes on Non-supersymmetric Cycles

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