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Disordered double Weyl node
Björn Sbierski, Maximilian Trescher, Emil J. Bergholtz +1
Double Weyl nodes are topologically protected band crossing points which carry chiral charge . They are stabilized by point group symmetry and are predicted to occur in…
Model Fractional Chern Insulators
Jörg Behrmann, Zhao Liu, Emil J. Bergholtz
We devise local lattice models whose ground states are model fractional Chern insulators---Abelian and non-Abelian topologically ordered states characterized by exact ground state…
Quantum Critical Exponents for a Disordered Three-Dimensional Weyl Node
Björn Sbierski, Emil J. Bergholtz, Piet W. Brouwer
Three-dimensional Dirac and Weyl semimetals exhibit a disorder-induced quantum phase transition between a semimetallic phase at weak disorder and a diffusive-metallic phase at stro…
Quantum transport in Dirac materials: signatures of tilted and anisotropic Dirac and Weyl cones
Maximilian Trescher, Björn Sbierski, Piet W. Brouwer +1
We calculate conductance and noise for quantum transport at the nodal point for arbitrarily tilted and anisotropic Dirac or Weyl cones. Tilted and anisotropic dispersions are gener…