Negative dimensional operators in the disordered critical points of Dirac fermions

Preprint

16 January 1995

preprint
Published by arXiv in arXiv

Abstract

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.

Keywords

DIMENSIONAL OPERATORS
NEGATIVE DIMENSIONAL
DISORDERED CRITICAL
SUPERCONDUCTIVITY
CRITICAL POINTS
CRITICAL LINE
DIRAC FERMION
ALGEBRA
FERMION

All Related Versions

Version 1, 1995-01-16, ArXiv
Version 2, 1995-01-17, ArXiv
Published version: Physical Review B, 53 (12), R7638.

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