Intrinsic dissipative Floquet superconductors beyond mean-field theory

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.

14 pages, 5 figures

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Cited by in corpus (8)

• Floquet engineering of Kitaev quantum magnets
• Keldysh Nonlinear Sigma Model for a Free-Fermion Gas under Continuous Measurements
• Dynamical phases transitions in periodically driven Bardeen-Cooper-Schrieffer systems
• Thermalization of non-Fermi-liquid electron-phonon systems: Hydrodynamic relaxation of the Yukawa-Sachdev-Ye-Kitaev model
• Properties of dissipative Floquet Majorana modes using a quantum dot
• Work Statistics and Adiabatic Assumption in Nonequilibrium Many-Body Theory
• Decoding the drive-bath interplay: A guideline to enhance superconductivity
• Nonequilibrium hysteretic phase transitions in periodically light-driven superconductors