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cond-mat.str-el2005★ 8 cited
Numerical Renormalization Group for Impurity Quantum Phase Transitions: Structure of Critical Fixed Points
Hyun-Jung Lee, Ralf Bulla, Matthias Vojta
The numerical renormalization group method is used to investigate zero temperature phase transitions in quantum impurity systems, in particular in the particle-hole symmetric soft-…
cond-mat.str-el2005★ 16 cited
Electron Transfer in Donor-Acceptor Systems: Many-Particle Effects and Influence of Electronic Correlations
Sabine Tornow, Ning-Hua Tong, Ralf Bulla
We investigate electron transfer processes in donor-acceptor systems with a coupling of the electronic degrees of freedom to a common bosonic bath. The model allows to study many-p…