Description of Intersecting Branes via Tachyon Condensation

TL;DR

This paper presents a model using tachyon condensation in brane-antibrane systems to describe intersecting and parallel BPS branes, exploring their dynamics, potential forms, and implications for black hole physics.

Contribution

It introduces a unified low energy effective theory for intersecting and parallel branes based on tachyon condensation, with applications to supersymmetry and black hole physics.

Findings

Supersymmetric fluctuations around brane systems after tachyon condensation.

Explicit form of the tachyon potential.

Application to black hole physics.

Abstract

We construct a model describing BPS brane-systems using low energy effective theory of brane-antibrane system. Both parallel branes and intersecting branes can be treated by this model. After tachyon condensation, the dynamics of fluctuations around such brane-systems is supersymmetric if the degrees of freedom are restricted on the branes. The form of the tachyon potential and the application of this model to the black hole physics are discussed.