9 citations · 15 across the 3 of their papers we have counts for
3 papers
cond-mat.supr-con2008★ 5 cited
Fourth-Order Perturbation Expansion for Hubbard Model on a Two-Dimensional Square Lattice
H. Ikeda, S. Shinkai, K. Yamada
We investigate the Hubbard model on a two-dimensional square lattice by the perturbation expansion to the fourth order in the on-site Coulomb repulsion U. Numerically calculating a…
cond-mat.str-el2005★ 9 cited
Fourth Order Perturbation Theory for Normal Selfenergy in Repulsive Hubbard Model
Shogo Shinkai, Hiroaki Ikeda, Kosaku Yamada
We investigate the normal selfenergy and the mass enhancement factor in the Hubbard model on the two-dimensional square lattice. Our purpose in this paper is to evaluate the mass e…
cond-mat.supr-con2005★ 1 cited
Possible Pairing Symmetry of Three-dimensional Superconductor UPt -- Analysis Based on a Microscopic Calculation --
Shogo Shinkai, Kosaku Yamada
Stimulated by the anomalous superconducting properties of UPt, we investigate the pairing symmetry and the transition temperature in the two-dimensional(2D) and three-dimension…