82 citations · 213 across the 12 of their papers we have counts for
3 papers · 1 filter
Emergence of -pairing ground-state in population-imbalanced attractive Fermi-gases filling orbitals on 1-D optical lattice
Keita Kobayashi, Yukihiro Ota, Masahiko Okumura +2
We explore the ground states in population-imbalanced attractive 1-D fermionic optical lattice filling orbitals over the lowest one by using the density-matrix-renormalizat…
Superconductivity in repulsively interacting fermions on a diamond chain: flat-band induced pairing
Keita Kobayashi, Masahiko Okumura, Susumu Yamada +2
To explore whether a flat-band system can accommodate superconductivity, we consider repulsively interacting fermions on the diamond chain, a simplest quasi-one-dimensional system…
Nuclear magnetic relaxation and superfluid density in Fe-pnictide superconductors: An anisotropic \pm s-wave scenario
Yuki Nagai, Nobuhiko Hayashi, Noriyuki Nakai +3
We discuss the nuclear magnetic relaxation rate and the superfluid density with the use of the effective five-band model by Kuroki et al. [Phys. Rev. Lett. 101, 087004 (2008)] in F…