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cond-mat.str-el2012★ 12 cited
Momentum Dependent Local-Ansatz Wavefunction from Weak to Strong Electron Correlations
M. Atiqur R. Patoary, Sumal Chandra, Yoshiro Kakehashi
Momentum dependent local-ansatz (MLA) wavefunction describes accurately electron correlations from the weak to intermediate Coulomb interaction regimes. We point out that the MLA c…
cond-mat.str-el2012
Nonlocal Excitations and 1/8 Singularity in Cuprates
Yoshiro Kakehashi, M. Atiqur R. Patoary, Sumal Chandra
Momentum-dependent excitation spectra of the two-dimensional Hubbard model on the square lattice have been investigated at zero temperature on the basis of the full self-consistent…