107 citations · 991 across the 54 of their papers we have counts for
Showing 2008Show all
2 papers · 1 filter
cond-mat.str-el2008★ 1 cited
Random dispersion approximation for the Hubbard model
S. Ejima, F. Gebhard, R. M. Noack
We use the Random Dispersion Approximation (RDA) to study the Mott-Hubbard transition in the Hubbard model at half band filling. The RDA becomes exact for the Hubbard model in infi…
cond-mat.str-el2008★ 24 cited
Quantum phase transition in a 1D transport model with boson affected hopping: Luttinger liquid versus charge-density-wave behavior
S. Ejima, G. Hager, H. Fehske
We solve a very general two-channel fermion-boson model describing charge transport within some background medium by means of a refined pseudo-site density matrix renormalization g…