241 citations · 953 across the 17 of their papers we have counts for
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Dynamic Structure Factor of the Two-Dimensional Shastry-Sutherland Model
Christian Knetter, Goetz S. Uhrig
We calculate the 2-triplon contribution to the dynamic structure factor of the 2-dimensional Shastry-Sutherland model, realized in SrCu2(BO3)2, by means of perturbative continuous…
Spectral properties of the dimerized and frustrated chain
Kai P. Schmidt, Christian Knetter, Götz S. Uhrig
Spectral densities are calculated for the dimerized and frustrated S=1/2 chain using the method of continuous unitary transformations (CUTs). The transformation to an effective tri…
The Structure of Operators in Effective Particle-Conserving Models
Christian Knetter, Kai P. Schmidt, Goetz S. Uhrig
For many-particle systems defined on lattices we investigate the global structure of effective Hamiltonians and observables obtained by means of a suitable basis transformation. We…