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cond-mat.str-el2004★ 12 cited
Breakdown of the Luttinger sum-rule at the Mott-Hubbard transition in the one-dimensional t1-t2 Hubbard model
Claudius Gros, Kay Hamacher, Wolfgang Wenzel
We investigate the momentum distribution function near the Mott-Hubbard transition in the one-dimensional t1-t2 Hubbard model (the zig-zag Hubbard chain), with the density-matrix r…
cond-mat.str-el2001★ 19 cited
Interaction induced collapse of a section of the Fermi sea in in the zig-zag Hubbard ladder
Kay Hamacher, Claudius Gros, Wolfgang Wenzel
Using the next-nearest neighbor (zig-zag) Hubbard chain as an one dimemensional model, we investigate the influence of interactions on the position of the Fermi wavevectors with th…