137 citations · 188 across the 4 of their papers we have counts for
4 papers
Anomalous low doping phase of the Hubbard model
C. Groeber, R. Eder, W. Hanke
We present results of a systematic Quantum-Monte-Carlo study for the single-band Hubbard model. Thereby we evaluated single-particle spectra (PES & IPES), two-particle spectra (spi…
Strong coupling theory for the Hubbard model
A. Dorneich, M. G. Zacher, C. Groeber +1
We reanalyze the Hubbard-I approximation by showing that it is equivalent to an effective Hamiltonian describing Fermionic charge fluctuations, which can be solved by Bogoliubov tr…
Fermiology of a 1D heavy electron metal
C. Groeber, R. Eder
We present a Quantum Monte Carlo (QMC) study of the 1D Kondo lattice at non-integer filling, i.e. a one-dimensional version of a heavy electron metal. For this special system the m…
Temperature dependent band structure of the Kondo insulator
C. Groeber, R. Eder
We present a Qantum Monte Carlo (QMC) study of the temperature dependent dynamics of the Kondo insulator. Working at the so-called symmetrical point allows to perform minus-sign fr…