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تسجيل مستخدم جديدTachyonic decay of unstable Dirichlet branes
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We consider an unstable bound system of two supersymmetric Dirichlet branes of different dimensionality ($p,p$ with $p<p$) 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$p$-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.
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