Quantum Critical Transport in Clean Graphene

  title={Quantum Critical Transport in Clean Graphene},
  author={Lars Fritz and Joerg Schmalian and Markus Mueller and Subir Sachdev},
We describe electrical transport in ideal single-layer graphene at zero applied bias. There is a crossover from collisionless transport at frequencies larger than kBT/~ (T is the temperature) to collision-dominated transport at lower frequencies. The d.c. conductivity is computed by the solution of a quantum Boltzmann equation. Due to a logarithmic singularity in the collinear scattering amplitude (a consequence of relativistic dispersion in two dimensions) quasi-particles and -holes moving in… CONTINUE READING
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