Magnetic Catalysis in Graphene Effective Field Theory
arXiv:1607.03137 · doi:10.1103/PhysRevLett.117.266802
Abstract
We report on the first observation of magnetic catalysis at zero temperature in a fully nonperturbative simulation of the graphene effective field theory. Using lattice gauge theory, a nonperturbative analysis of the theory of strongly-interacting, massless, (2+1)-dimensional Dirac fermions in the presence of an external magnetic field is performed. We show that in the zero-temperature limit, a nonzero value for the chiral condensate is obtained which signals the spontaneous breaking of chiral symmetry. This result implies a nonzero value for the dynamical mass of the Dirac quasiparticle. This in turn has been posited to account for the quantum-Hall plateaus that are observed at large magnetic fields.
5 pages, 6 figures
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Cited by in corpus (5)
- Fermion bag approach to Hamiltonian lattice field theories in continuous time
- Surface Magnetic Catalysis
- Quantum Monte Carlo study of static potential in graphene
- Collective charge excitations and the metal-insulator transition in the square lattice Hubbard-Coulomb model
- Quantum criticality of magnetic catalysis in two-dimensional correlated Dirac fermions