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Chiral Symmetry Breaking in Planar QED in External Magnetic Fields

We investigate planar quantum electrodynamics (QED) with two degenerate staggered fermions in an external magnetic field on the lattice. We argue that in external magnetic fields there is dynamical generation of mass for two-dimensional massless Dirac fermions in the weak-coupling region. We extrapolate our lattice results to the quantum Hall effect in graphene.

preprint2012arXivOpen access
Paolo CeaLeonardo CosmaiPietro GiudiceAlessandro Papa
cond-mat.str-elhep-lat
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Open access4 authors2 topics
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Paolo CeaLeonardo CosmaiPietro GiudiceAlessandro Papa

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