11 citations · 19 across the 9 of their papers we have counts for
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Spatial interference changes the symmetry class of a Josephson element
Takayuki Kubo
Spatial interference can break the inversion symmetry of an effective Josephson potential even in a laterally homogeneous junction with inversion-symmetric local energy. We derive…
Microscopic theory of the field-induced instability of the vortex-free state in superconducting thin-film strips
Takayuki Kubo
In the Pearl--London theory, the edge-barrier-disappearance field of a superconducting thin-film strip depends on an arbitrary short-distance core cutoff because the vortex is trea…
Microscopic equivalence of the vortex-entry current and the depairing current in a superconducting thin-film strip
Takayuki Kubo
The vortex-entry current density of a superconducting strip is usually defined, within phenomenological Pearl--London theory, as the current density at which the edge b…
Microscopic theory of the lower critical field in superconducting thin-film strips
Takayuki Kubo
The lower critical field of a narrow superconducting thin-film strip sets the thermodynamic scale for vortex-free operation in a perpendicular magnetic field. The standard…
Superheating field of clean superconductors near the type-I--type-II boundary: the low-temperature Meissner stability limit of niobium
Takayuki Kubo
We calculate the low-temperature superheating field of clean superconductors near the boundary between type-I and type-II superconductivity, with particular emphasis o…
Power attenuation in millimeter-wave and terahertz superconducting rectangular waveguides: linear response, TLS loss, and Higgs-mode nonlinearity
Takayuki Kubo
Superconducting waveguides are a promising platform for ultralow-loss transmission in the millimeter-wave to terahertz band under cryogenic conditions, with potential applications…