4 citations · 4 across the 2 of their papers we have counts for
5 papers
Relativistic Model for two-band Superconductivity
Tadafumi Ohsaku
To understand the superconductivity in MgB2, several two-band models of superconductivity were proposed. In this paper, by using the relativistic fermion model, we clearize the eff…
Chiral Symmetry and Collective Excitations in p-wave, d-wave and f-wave Superconductors
Tadafumi Ohsaku
We discuss the origin of charge density wave (CDW) and spin density wave (SDW) in p-wave, d-wave and f-wave superconductors. To describe the low-energy quasiparticle excitation of…
QED-SCF, MCSCF and Coupled-cluster Methods in Quantum Chemistry
Tadafumi Ohsaku, Kizashi Yamaguchi
We investigate the method to combine the techniques of quantum chemisty with QED. In our theory, we treat the N-electron system and the Dirac sea on an equal footing; we regard bot…
Quantum Electrodynamical Density-matrix Functional Theory and Group-theoretical Consideration of its Solution
Tadafumi Ohsaku, Shusuke Yamanaka, Daisuke Yamaki +1
For studying the group theoretical classification of the solutions of the density functional theory in relativistic framework, we propose quantum electrodynamical density-matrix fu…
Theory of Quantum Electrodynamical Self-consistent Fields
Tadafumi Ohsaku
To obtain the basis for combining various many-body techniques to QED in a consistent manner, we investigate the theory of quantum electrodynamical self-consistent fields. The rese…