211 citations · 1.6k across the 37 of their papers we have counts for
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Superconductivity on a Quasiperiodic Lattice: Extended-to-Localized Crossover of Cooper Pairs
Shiro Sakai, Nayuta Takemori, Akihisa Koga +1
We study a possible superconductivity in quasiperiodic systems, by portraying the issue within the attractive Hubbard model on a Penrose lattice. Applying a real-space dynamical me…
Hidden-Fermion Representation of Self-energy in Pseudogap and Superconducting States of Two-Dimensional Hubbard Model
Shiro Sakai, Marcello Civelli, Masatoshi Imada
We study the frequency-dependent structure of electronic self-energy in the pseudogap and superconducting states of the two-dimensional Hubbard model. We present the self-energy ca…
Real-space renormalized dynamical mean field theory
Dai Kubota, Shiro Sakai, Masatoshi Imada
We propose real-space renormalized dynamical mean field theory (rr-DMFT) to deal with large clusters in the framework of a cluster extension of the DMFT. In the rr-DMFT, large clus…