DOI: 10.1063/10.0031845 ISSN: 0360-0335
Dynamic scheme for the description of two-band superconductors. Collective modes
V. P. Galaiko, V. S. ShumeikoDynamic equation for the density matrix of a two-band superconductor are constructed. For the case of a narrow band, the collective oscillations are analyzed and a weakly damped mode is found which, being the characteristic property of such superconductors, can be used in their experimental identification.