45 citations · 68 across the 3 of their papers we have counts for
3 papers
cond-mat.str-el2011★ 5 cited
Hole Dispersions for Antiferromagnetic Spin-1/2 Two-Leg Ladders by Self-Similar Continuous Unitary Transformations
S. Duffe, G. S. Uhrig
The hole-doped antiferromagnetic spin-1/2 two-leg ladder is an important model system for the high- superconductors based on cuprates. Using the technique of self-similar cont…
cond-mat.str-el2010★ 18 cited
Derivation of the t-J model for finite doping
Simone A. Hamerla, Sebastian Duffe, Götz S. Uhrig
Mapping complex problems to simpler effective models is a key tool in theoretical physics. One important example in the realm of strongly correlated fermionic systems is the mappin…
cond-mat.str-el2009★ 45 cited
Adapted continuous unitary transformation to treat systems with quasiparticles of finite lifetime
Tim Fischer, Sebastian Duffe, Götz S. Uhrig
An improved generator for continuous unitary transformations is introduced to describe systems with unstable quasiparticles. Its general properties are derived and discussed. To il…