55 citations · 103 across the 3 of their papers we have counts for
5 papers
Unusual quasi-one-dimensional electron dispersions in the spin-1/2 quantum magnet TiOCl
M. Hoinkis, M. Sing, J. Schaefer +8
We have studied the electronic structure of the spin-1/2 quantum magnet TiOCl by polarization-dependent momentum-resolved photoelectron spectroscopy. From that, we confirm the quas…
Optical conductivity of the one-dimensional dimerized Hubbard model at quarter filling
Holger Benthien, Eric Jeckelmann
We investigate the optical conductivity in the Mott insulating phase of the one-dimensional extended Hubbard model with alternating hopping terms (dimerization) at quarter band fil…
Density-matrix renormalisation group approach to quantum impurity problems
Satoshi Nishimoto, Eric Jeckelmann
A dynamic density-matrix renormalisation group approach to the spectral properties of quantum impurity problems is presented. The method is demonstrated on the spectral density of…
The Recurrent Variational Approach applied to the Electronic Structure of Conjugated Polymers
S. Pleutin, E. Jeckelmann, M. A. Martin-Delgado +1
In this note, first the Recurrent Variational Approach (RVA) is introduced by using as example a non-trivial spin-model, the spin-1/2 antiferromagnetic two-leg-ladder. Then, a firs…
Stripes in a three-chain Hubbard ladder: a comparison of density-matrix renormalization group and constrained-path Monte Carlo results
J. Bonca, J. E. Gubernatis, M. Guerrero +2
Using both the density-matrix renormalization group method and the constrained-path quantum Monte Carlo method, we have studied the ground-state energies and the spin and hole dens…