Intrinsic dissipative Floquet superconductors beyond mean-field theory

Autor:	Yang, Qinghong, Yang, Zhesen, Liu, Dong E.
Rok vydání:	2020
Předmět:	Condensed Matter - Superconductivity Condensed Matter - Mesoscale and Nanoscale Physics
Zdroj:	Phys. Rev. B 104, 014512 (2021)
Druh dokumentu:	Working Paper
DOI:	10.1103/PhysRevB.104.014512
Popis:	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. Comment: 14 pages, 5 figures
Databáze:	arXiv
Externí odkaz:	http://arxiv.org/abs/2009.08351 Zobrazit plný text záznamu View this record from Arxiv