3 papers
cond-mat.supr-con2020
Zero-Field Surface Charge Due to the Gap Suppression in -Wave Superconductors
Ezekiel Sambo Joshua, Hikaru Ueki, Wataru Kohno +1
We perform a microscopic study on the redistribution of electric charge near the surface of a model -wave superconductor cut along the [110] direction, with a Fermi surface appr…
cond-mat.quant-gas2019
Variational Approach to Many-Body Problems Incorporating Many-Body Effects at Finite Temperature
Akimitsu Kirikoshi, Wataru Kohno, Takafumi Kita
We develop a variational approach at finite temperature that incorporates many-body correlation self-consistently. The grand potential is constructed in terms of Green's function e…
cond-mat.supr-con2016
Vortex-Core Charging Due to the Lorentz Force in a -Wave Superconductor
Hikaru Ueki, Wataru Kohno, Takafumi Kita
We derive augmented quasiclassical equations of superconductivity with the Lorentz force in the Matsubara formalism so that the charge redistribution due to supercurrent can be cal…