14 citations · 33 across the 6 of their papers we have counts for
3 papers · 1 filter
Full Self-Consistent Projection Operator Approach to Nonlocal Excitations in Solids
Yoshiro Kakehashi, Tetsuro Nakamura, Peter Fulde
A self-consistent projection operator method for single-particle excitations is developed. It describes the nonlocal correlations on the basis of a projection technique to the reta…
First-principles dynamical CPA to finite-temperature magnetism of transition metals
Y. Kakehashi, T. Tamashiro, M. A. R. Patoary +1
We present here the first-principles dynamical CPA (coherent potential approximation) combined with the tight-binding LMTO LDA+U method towards quantitative calculations of the ele…
Non local theory of excitations applied to the Hubbard model
Y. Kakehashi, T. Nakamura, P. Fulde
We propose a nonlocal theory of single-particle excitations. It is based on an off-diagonal effective medium and the projection operator method for treating the retarded Green func…