40 citations · 104 across the 5 of their papers we have counts for
5 papers
Density-matrix renormalization study of the frustrated fermions on the triangular lattice
S. Nishimoto, C. Hotta
We show that the two-dimensional density-matrix renormalization analysis is useful to detect the symmetry breaking in the fermionic model on a triangular lattice. Under the cylindr…
Current-current correlations in the three-band model for two-leg CuO ladders
S. Nishimoto, E. Jeckelmann, D. J. Scalapino
We study current-current correlations in the three-band Hubbard model for two-leg CuO ladders using the density-matrix renormalization group method. We find that these correlations…
Phase diagram of the one-dimensional Hubbard model with next-nearest-neighbor hopping
S. Nishimoto, K. Sano, Y. Ohta
We study the one-dimensional Hubbard model with nearest-neighbor and next-nearest-neighbor hopping integrals by using the density-matrix renormalization group (DMRG) method and Har…
Fourth-Order Perturbation Theory for the Half-Filled Hubbard Model in Infinite Dimensions
Florian Gebhard, Eric Jeckelmann, Sandra Mahlert +2
We calculate the zero-temperature self-energy to fourth-order perturbation theory in the Hubbard interaction for the half-filled Hubbard model in infinite dimensions. For the B…
Differences Between Hole and Electron Doping of a Two-Leg CuO Ladder
S. Nishimoto, E. Jeckelmann, D. J. Scalapino
Here we report results of a density-matrix-renormalization-group (DMRG) calculation of the charge, spin, and pairing properties of a two-leg CuO Hubbard ladder. The outer oxygen at…