4 citations · 6 across the 2 of their papers we have counts for
6 papers
Ferromagnetic Pairing States on Two-Coupled Chains
Akinori Tanaka
We propose a concrete model which exhibits ferromagnetism and electron-pair condensation simultaneously. The model is defined on two chains and consists of the electron hopping ter…
d-Wave Pairing State in Terms of the Zhang-Rice Singlets
Akinori Tanaka
In cuprate superconductors doping is believed to create holes on the O-sites, which couple antiferromagnetically with holes on the Cu-sites to form the so-called Zhang-Rice singlet…
Physical realization of the four color problem in quantum systems
Masanori Yamanaka, Akinori Tanaka
A multi-component electron model on a lattice is constructed whose ground state exhibits a spontaneous ordering which follows the rule of map-coloring used in the solution of the f…
Extended Hubbard Model with Unconventional Pairing in Two Dimensions
Akinori Tanaka, Masanori Yamanaka
We rigorously prove that an extended Hubbard model with attraction in two dimensions has an unconventional pairing ground state for any electron filling. The anisotropic spin-0 or…
Exact Electron-Pairing Ground States of Tight-Binding Models with Local Attractive Interactions
Akinori Tanaka
We present a class of exactly solvable models of correlated electrons. The models are defined in any dimension and consist of electron-hopping terms and local attractive intera…
A Model of Strongly Correlated Electrons with Condensed Resonating-Valence-Bond Ground States
Akinori Tanaka
We propose a new exactly solvable model of strongly correlated electrons. The model is based on a - model of the CuO plane with infinitely large repulsive interactions on…