312 citations · 577 across the 7 of their papers we have counts for
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Charge instabilities at the metamagnetic transition
Carsten Honerkamp
We investigate instabilities in the charge channel in the vicinity of (meta-)magnetic transitions of itinerant electron systems. Based on a weak coupling analysis we argue that in…
Functional renormalization group in the two-dimensional Hubbard model
Carsten Honerkamp
We review recent developments in functional renormalization group (RG) methods for interacting fermions. These approaches aim at obtaining an unbiased picture of competing Fermi li…
Interaction flow method for many-fermion systems
Carsten Honerkamp, Daniel Rohe, Sabine Andergassen +1
We propose an interaction flow scheme that sums up the perturbation expansion of many-particle systems by successively increasing the interaction strength. It combines the unbiased…
Ultracold fermions and the SU(N) Hubbard model
Carsten Honerkamp, Walter Hofstetter
We investigate the fermionic SU(N) Hubbard model on the two-dimensional square lattice for weak to moderate interaction strengths using one-loop renormalization group and mean-fiel…
d-Mott phases in one and two dimensions
A. Laeuchli, C. Honerkamp, T. M. Rice
We use exact diagonalization to determine the spectrum of reduced Hamiltonians based on renormalization group flows to strong coupling. For the half-filled two-leg Hubbard ladder w…