12 citations · 28 across the 4 of their papers we have counts for
4 papers
Strong disorder in nodal semimetals: Schwinger-Dyson--Ward approach
Björn Sbierski, Christian Fräßdorf
The self-consistent Born approximation quantitatively fails to capture disorder effects in semimetals. We present an alternative, simple-to-use non-perturbative approach to calcula…
Abelian Chern-Simons Theory for the Fractional Quantum Hall Effect in Graphene
Christian Fräßdorf
We develop a theory for the pseudorelativistic fractional quantum Hall effect in graphene, which is based on a multicomponent abelian Chern-Simons theory in the fermionic functiona…
Chemical-potential flow equations for graphene with Coulomb interactions
Christian Fräßdorf, Johannes E. M. Mosig
We calculate the chemical potential dependence of the renormalized Fermi velocity and static dielectric function for Dirac quasiparticles in graphene nonperturbatively at finite te…
Keldysh functional renormalization group for electronic properties of graphene
Christian Fräßdorf, Johannes E. M. Mosig
We construct a nonperturbative nonequilibrium theory for graphene electrons interacting via the instantaneous Coulomb interaction by combining the functional renormalization group…