Planar Dirac fermions in long-range-correlated random vector potential

Details Planar Dirac fermions in long-range-correlated random vector potential Planar Dirac fermions in long-range-correlated random vector potential

2002-02-11

arxiv.org/abs/cond-mat/0202173v2

Phys. Lett. A, v.309, p.363 (2003)

Physics

Condensed Matter

Latex, 12 pages, no figures

Scientific paper

10.1016/S0375-9601(03)00212-3

We study the behavior of two-dimensional Dirac fermions in the presence of a static long-range-correlated random vector potential. By applying an exact path integral representation for the propagator of a spinor particle we obtain asymptotics of the gauge invariant spectral function and the correlation function of the local density of states, both in the ballistic regime of sufficiently high energies. We also discuss localization properties of the random Dirac wave functions in the complementary zero energy limit and the putative localization scenario.

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