Comment on "Accurate ground-state phase diagram of the one-dimensional extended Hubbard model at half filling"
arXiv:cond-mat/0401490 · doi:10.1103/PhysRevB.71.197101
Abstract
In PRB 68, 153101 (2003), Guoping Zhang presented density-matrix renormalization group (DMRG) results which contradict my DMRG calculations and Hirsch's quantum Monte Carlo (QMC) simulations for the charge-density-wave (CDW) phase boundary in the one-dimensional extended Hubbard model at half filling. In this Comment I show that Zhang's results are inaccurate and that his criticism of my work is groundless.
new QMC and DMRG results added