16 citations · 16 across the 2 of their papers we have counts for
2 papers
cond-mat.str-el1998
Crossover from Fermi to Non-Fermi Liquid in Two-Dimensional Interacting Fermions
Ken Yokoyama
Self-energy at zero temperature is investigated up to the third-order of interaction using one-patch model in two dimensions, whose interaction process corresponds to -process…
cond-mat.str-el1997★ 16 cited
One-Particle Excitation of the Two-Dimensional Hubbard Model
Ken Yokoyama, Hidetoshi Fukuyama
The real part of the self-energy of interacting two-dimensional electrons has been calculated in the t-matrix approximation. It is shown that the forward scattering results in an a…