Feigel'man M V, Ioffe L B
L. D. Landau Institute for Theoretical Physics, Chernogolovka, Moscow region, 142432, Russia.
Skolkovo Institute of Science and Technology, Moscow, 143026, Russia.
Phys Rev Lett. 2018 Jan 19;120(3):037004. doi: 10.1103/PhysRevLett.120.037004.
Strongly disordered pseudogapped superconductors are expected to display arbitrarily high values of kinetic inductance close to the superconductor-insulator transition (SIT), which make them attractive for the implementation of large dissipationless inductance. We develop the theory of the collective modes in these superconductors and discuss associated dissipation at microwave frequencies. We obtain the collective mode spectra dependence on the disorder level and conclude that collective modes become a relevant source of dissipation and noise in the outer proximity of the SIT.
强无序赝能隙超导体预计在接近超导体-绝缘体转变（SIT）时表现出任意高的动电感值，这使得它们对于实现大的无耗散电感具有吸引力。我们发展了这些超导体中集体模式的理论，并讨论了微波频率下的相关耗散。我们得到了集体模式谱对无序水平的依赖性，并得出结论，在SIT的外部临近区域，集体模式成为耗散和噪声的一个相关来源。
