Comment on "Accurate ground-state phase diagram of the one-dimensional extended Hubbard model at half filling"

Details Comment on "Accurate ground-state phase diagram of the one-dimensional extended Hubbard model at half filling" Comment on "Accurate ground-state phase diagram of the one-dimensional extended Hubbard model at half filling"

2004-01-25

arxiv.org/abs/cond-mat/0401490v2

Physics

Condensed Matter

Strongly Correlated Electrons

new QMC and DMRG results added

Scientific paper

10.1103/PhysRevB.71.197101

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.

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