83 citations · 128 across the 5 of their papers we have counts for
5 papers
Spin Susceptibility of a J=3/2 Superconductor
Dakyeong Kim, Takumi Sato, Shingo Kobayashi +1
We discuss the spin susceptibility of superconductors in which a Cooper pair consists of two electrons having the angular momentum J=3/2 due to strong spin-orbit interactions. The…
Quasiparticle on Bogoliubov Fermi Surface and Odd-Frequency Cooper Pair
Dakyeong Kim, Shingo Kobayashi, Yasuhiro Asano
We discuss a close relationship between a quasiparticle on the Bogoliubov Fermi surface and an odd-frequency Cooper pair in a superconductor in which a Cooper pair consisting of tw…
Josephson effect of superconductors with electrons
Dakyeong Kim, Shingo Kobayashi, Yasuhiro Asano
The angular momentum of an electron is characterized well by pseudospin with in the presence of strong spin-orbit interactions. We study theoretically the Josephson effect…
Bulk-edge correspondence in nonunitary Floquet systems with chiral symmetry
Ken Mochizuki, Dakyeong Kim, Norio Kawakami +1
We study topological phases in one-dimensional open Floquet systems driven by chiral symmetric nonunitary time evolution. We derive a procedure to calculate topological numbers fro…
Explicit definition of symmetry for non-unitary quantum walks with gain and loss
Ken Mochizuki, Dakyeong Kim, Hideaki Obuse
symmetry, that is, a combined parity and time-reversal symmetry is a key milestone for non-Hermite systems exhibiting entirely real eigenenergy. In the present work,…