175 citations · 450 across the 8 of their papers we have counts for
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cond-mat.str-el2001
Spin fluctuations and pseudogap in the two-dimensional half-filled Hubbard model at weak coupling
N. Dupuis
Starting from the Hubbard model in the weak-coupling limit, we derive a spin-fermion model where the collective spin excitations are described by a non-linear sigma model. This res…
cond-mat.str-el2001
Spin waves in the spiral phase of a doped antiferromagnet: a strong-coupling approach
N. Dupuis
We study spin fluctuations in the spiral phase of the two-dimensional Hubbard model at low doping on the basis of the spin-particle-hole coherent-state path integral. In the strong…