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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·Eric Jeckelmann·Steven R. White
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Abstract

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 densities of a $12 \times 3$ Hubbard model with open boundary conditions and 6 holes doped away from half-filling. Results obtained with these two methods agree well in the small and intermediate $U$ regimes. For $U/t \geq 6$ we find a ground-state with stripes.

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J. Bonca, J. E. Gubernatis, M. Guerrero, Eric Jeckelmann, Steven R. White. 1997-12-01. Stripes in a three-chain Hubbard ladder: a comparison of density-matrix renormalization group and constrained-path Monte Carlo results. https://arxiv.org/abs/cond-mat/9712018

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