136 citations · 499 across the 18 of their papers we have counts for
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cond-mat.str-el2003★ 95 cited
Temperature dependence of antiferromagnetic order in the Hubbard model
T. Baier, E. Bick, C. Wetterich
We suggest a method for an approximative solution of the two dimensional Hubbard model close to half filling. It is based on partial bosonisation, supplemented by an investigation…
cond-mat.str-el2003★ 25 cited
Antiferromagnetic gap in the Hubbard model
T. Baier, E. Bick, C. Wetterich
We compute the temperature dependence of the antiferromagnetic order parameter and the gap in the two dimensional Hubbard model at and close to half filling. Our approach is based…
cond-mat.str-el2000★ 22 cited
Spontaneous symmetry breaking in the colored Hubbard model
Tobias Baier, Eike Bick, Christof Wetterich
The Hubbard model is reformulated in terms of different ``colored'' fermion species for the electrons or holes at different lattice sites. Antiferromagnetic ordering or d-wave supe…