Dirac Fermions on a Two-Dimensional Lattice and the Intermediate Metallic Phase

Details Dirac Fermions on a Two-Dimensional Lattice and the Intermediate Metallic Phase Dirac Fermions on a Two-Dimensional Lattice and the Intermediate Metallic Phase

2000-04-18

arxiv.org/abs/cond-mat/0004318v1

Physics

Condensed Matter

10 pages, 1 figure

Scientific paper

Consequences of different discretizations of the two-dimensional Dirac operator on low energy properties (e.g., the number of nodes) and their relations to gauge properties are discussed. Breaking of the gauge invariance was suggested in a recent work by M. Bocquet, D. Serban, and M.R. Zirnbauer [cond-mat/9910480] in order to destroy an intermediate metallic phase of lattice Dirac fermions with random mass. It is explained that such a procedure is inconsistent with the underlying lattice physics. Previous results point out that the logarithmic growth of the slope of the average density of states with the system size, obtained in the field-theoretical calculation of M. Bocquet et al., could be a precursor for the appearence of an intermediate metallic phase.

Affiliated with

Also associated with

No associations

Rating

Dirac Fermions on a Two-Dimensional Lattice and the Intermediate Metallic Phase does not yet have a rating. At this time, there are no reviews or comments for this scientific paper.

If you have personal experience with Dirac Fermions on a Two-Dimensional Lattice and the Intermediate Metallic Phase, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Dirac Fermions on a Two-Dimensional Lattice and the Intermediate Metallic Phase will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFWR-SCP-O-313913