425 citations · 1.4k across the 17 of their papers we have counts for
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cond-mat.str-el2010★ 6 cited
The Functional Renormalization Group for Zero-Dimensional Quantum Systems in and out of Equilibrium
C. Karrasch
We study transport properties of quantum impurity systems using the functional renormalization group. The latter is an RG-based diagrammatic tool to treat Coulomb interactions in a…
cond-mat.str-el2010★ 32 cited
Finite-temperature linear conductance from the Matsubara Green function without analytic continuation to the real axis
C. Karrasch, V. Meden, K. Schönhammer
We illustrate how to calculate the finite-temperature linear-response conductance of quantum impurity models from the Matsubara Green function. A continued fraction expansion of th…