Steady-state superconductivity in electronic materials with repulsive interactions

Abstract

We study the effect of laser driving on a minimal model for a hexagonal two-dimensional material with broken inversion symmetry. Through the application of circularly polarised light and coupling to a thermal free electron bath, the system is driven into a nonequilibrium steady state with asymmetric, nonthermal carrier populations in the two valleys. We show that, in this steady state, interband superconducting correlations between electrons can develop independent of the sign of the electron-electron interactions. We discuss how our results apply, for example, to transition metal dichalcogenides. This work opens the door to technological applications of superconductivity in a range of materials that were hitherto precluded from it.

arXiv comment5+7 pages, 3+1 figures

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Cited by in corpus (8)

• Enhancement of Local Pairing Correlations in Periodically Driven Mott Insulators
• Optically induced topological superconductivity via Floquet interaction engineering
• Laser-induced topological $s$-wave superconductivity in bilayer transition metal dichalcogenides
• Floquet-engineered light-cone spreading of correlations in a driven quantum chain
• Signatures of the Higgs mode in transport through a normal-metal--superconductor junction
• Decoding the drive-bath interplay: A guideline to enhance superconductivity
• The two-gap BCS model in the large-$N$ approximation within a field-theory approach
• Many-body correlations in Floquet steady-states: Frequency-resolved renormalization group of the driven Anderson impurity