Negative dimensional operators in the disordered critical points of Dirac fermions

Details Negative dimensional operators in the disordered critical points of Dirac fermions Negative dimensional operators in the disordered critical points of Dirac fermions

1995-01-16

arxiv.org/abs/cond-mat/9501066v2

Phys. Rev. B 53 (1996) R7638

Physics

Condensed Matter

12 pages, revtex, no figures

Scientific paper

10.1103/PhysRevB.53.R7638

Recently, in an attempt to study disordered criticality in Quantum Hall systems and $d$-wave superconductivity, it was found that two dimensional random Dirac fermion systems contain a line of critical points which is connected to the pure system. We use bosonization and current algebra to study properties of the critical line and calculate the exact scaling dimensions of all local operators. We find that the critical line contains an infinite number of relevant operators with negative scaling dimensions.

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