Termination of Multifractal Behaviour for Critical Disordered Dirac Fermions

Details Termination of Multifractal Behaviour for Critical Disordered Dirac Fermions Termination of Multifractal Behaviour for Critical Disordered Dirac Fermions

1997-11-12

arxiv.org/abs/cond-mat/9711109v1

Phys. Rev. Lett. 80, 1276 (1998).

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

4 pages, no figures

Scientific paper

10.1103/PhysRevLett.80.1276

We consider Dirac fermions interacting with a disordered non-Abelian vector potential. The exact solution is obtained through a special type of conformal field theory including logarithmic correlators, without resorting to the replica or supersymmetry approaches. It is shown that the proper treatment of the conformal theory leads to a different multifractal scaling behaviour than initially expected. Moreover, the previous replica solution is found to be incorrect at the level of higher correlation functions.

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