Intrinsic dissipative Floquet superconductors beyond mean-field theory
Superconductivity
2021-07-20 v2 Mesoscale and Nanoscale Physics
Abstract
We study the intrinsic superconductivity in a dissipative Floquet electronic system in the presence of attractive interactions. Based on the functional Keldysh theory beyond the mean-field treatment, we find that the system shows a time-periodic bosonic condensation and reaches an intrinsic dissipative Floquet superconducting (SC) phase. Due to the interplay between dissipations and periodic modulations, the Floquet SC gap becomes "soft" and contains the diffusive fermionic modes with finite lifetimes. However, bosonic modes of the bosonic condensation are still propagating even in the presence of dissipations.
Keywords
Cite
@article{arxiv.2009.08351,
title = {Intrinsic dissipative Floquet superconductors beyond mean-field theory},
author = {Qinghong Yang and Zhesen Yang and Dong E. Liu},
journal= {arXiv preprint arXiv:2009.08351},
year = {2021}
}
Comments
14 pages, 5 figures