60 citations · 202 across the 7 of their papers we have counts for
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Spectral Densities from Dynamic Density-Matrix Renormalization
Carsten Raas, Götz S. Uhrig
Dynamic density-matrix renormalization provides valuable numerical information on dynamic correlations by computing convolutions of the corresponding spectral densities. Here we di…
Thermodynamics of a Spin-1/2 Chain Coupled to Einstein Phonons
Alexander Bühler, Götz S. Uhrig, Jaan Oitmaa
A high order series expansion is employed to study the thermodynamical properties of a S=1/2 chain coupled to dispersionless phonons. The results are obtained without truncating th…
Systematic Mapping of the Hubbard Model to the Generalized t-J Model
Alexander Reischl, Erwin Müller-Hartmann, Götz S. Uhrig
The generalized t-J model conserving the number of double occupancies is constructed from the Hubbard model at and in the vicinity of half-filling at strong coupling. The construct…