2d random Dirac fermions: large N approach

D. Serban

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arXiv · cond-mat/0201030

2d random Dirac fermions: large N approach

D. Serban

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Abstract

We study the symmetry classes for the random Dirac fermions in 2 dimensions. We consider $N_f$ species of fermions, coupled by different types of disorder. We analyse the renormalisation group flow at the order of one loop. At $N_f$ large, the disorder distribution flows to an isotropic distribution and the effective action is a sigma model.

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D. Serban. 2002-01-03. 2d random Dirac fermions: large N approach. https://arxiv.org/abs/cond-mat/0201030

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