Two-dimensional Dirac fermions with random axial-vector potential

Details Two-dimensional Dirac fermions with random axial-vector potential Two-dimensional Dirac fermions with random axial-vector potential

2002-01-17

arxiv.org/abs/cond-mat/0201305v1

Physics

Condensed Matter

Disordered Systems and Neural Networks

4 pages

Scientific paper

10.1103/PhysRevB.65.153301

A Dirac fermion model with random axial-vector potential is proposed. At a
special strength of randomness, the symmetry of the action is enhanced, which
is due to the gauge symmetry \`a la Nishimori. Some exact scaling exponents of
single-particle Green functions are computed. The relationship with the XY
gauge glass model is discussed.

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