Tunnelling Effects in a Brane System and Quantum Hall Physics

Abstract

We argue that a system of interacting D-branes, generalizing a recent proposal, can be modelled as a Quantum Hall fluid. We show that tachyon condensation in such a system is equivalent to one particle tunnelling. In a conformal field theory effective description, that induces a transition from a theory with central charge c=2 to a theory with c=3/2, with a corresponding symmetry enhancement.

12 pages, no figures, Latex, some aspects clarified, sect.3 expanded, references added

References in corpus (2)

• D-brane Dynamics and the Quantum Hall Effect
• On the stability of the Quantum Hall soliton

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• Dissipative quantum mechanics and Kondo-like impurities on noncommutative two-tori