2 papers
cond-mat.supr-con2026
Optical conductivity of a dirty current-carrying superconductor
Artem V. Polkin, Mikhail A. Skvortsov
We develop a full microscopic theory for the optical conductivity, , of a dirty current-carrying superconductor. Within the Keldysh sigma model formalism, we obtain the gen…
cond-mat.supr-con2026
Plasmon excitations and their attenuation in dirty superconductors
Daniil K. Karuzin, Mikhail A. Skvortsov
We develop a theory for the plasmon spectrum in dirty superconductors across the entire temperature range. Starting with the microscopic Keldysh sigma model description, we link th…