119 citations · 547 across the 23 of their papers we have counts for
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Supercurrent-induced topological phase transitions
Kazuaki Takasan, Shuntaro Sumita, Youichi Yanase
We show that finite current in superconductors can induce topological phase transitions, as a result of the deformation of the quasiparticle spectrum by a finite center-of-mass (CO…
Dirac lines and loop at the Fermi level in the Time-Reversal Symmetry Breaking Superconductor LaNiGa
Jackson R. Badger, Yundi Quan, Matthew C. Staab +12
Unconventional superconductors have Cooper pairs with lower symmetries than in conventional superconductors. In most unconventional superconductors, the additional symmetry breakin…
Superconductor/normal-metal/superconductor junction of topological superconductors revisited: Fractional Josephson current, fermion parity, and oscillating wavefunctions
Shuntaro Sumita, Akira Furusaki
The fractional Josephson effect is known to be a characteristic phenomenon of topological Josephson junctions hosting Majorana zero modes (MZMs), where the Josephson current has a…
Topological gapless points in superconductors: From the viewpoint of symmetry
Shuntaro Sumita, Youichi Yanase
Searching for topological insulators/superconductors is a central subject in recent condensed matter physics. As a theoretical aspect, various classification methods of symmetry-pr…