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

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

2003-01-14

arxiv.org/abs/cond-mat/0301237v2

Phys. Rev. Lett. 91, 089701 (2003)

Physics

Condensed Matter

Strongly Correlated Electrons

1 page, 1 figure, v2: final published version

Scientific paper

10.1103/PhysRevLett.91.089701

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 the (U,V) plane, but exists only on a segment of a first-order SDW-CDW phase boundary. We here present quantum Monte Carlo result of higher precision and for larger system sizes than previously and reconfirm that the BOW phase does exist a finite distance away from the phase boundary, which hence is a BOW-CDW transition curve.

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