Comment on ``Ground State Phase Diagram of a Half-Filled One-Dimensional Extended Hubbard Model''

A. W. Sandvik, P. Sengupta, D. K. Campbell

In Phys. Rev. Lett. 89, 236401 (2002), Jeckelmann argued that the recently discovered bond-order-wave (BOW) phase of the 1D extended Hubbard model does not have a finite extent in…