Dynamical Cooper pairing in nonequilibrium electron-phonon systems
By Michael Jason Knap, M. Babadi, G. Refael, Ivar Martin, E. Demler. 2015
136 citations recorded by the source corpus.
We analyze Cooper pairing instabilities in strongly driven electron-phonon systems. The light-induced nonequilibrium state of phonons results in a simultaneous increase of the superconducting coupling constant and the electron scattering. We demonstrate that the competition between these effects leads to an enhanced superconducting transition temperature in a broad range of parameters. Our results may explain the observed transient enhancement of superconductivity in several classes of materials upon irradiation with high intensity pulses of terahertz light, and may pave new ways for engineering high-temperature light-induced superconducting states.
Subfields: Atomic and Molecular Physics, and Optics, Condensed Matter Physics
View Paper: https://www.semanticscholar.org/paper/b49c637532df7cb660b8852d2589be4974182a3f
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In Atomic and Molecular Physics, and Optics
- E. Demler
- D. Kennes
- Michael A Sentef
- M. Fabrizio
- A. Cavalleri
- D. Mihailovic
- A. Imamoğlu
- Alexey V. Kimel
In Condensed Matter Physics
Citations in the corpus
- Quantum Electrodynamic Control of Matter: Cavity-Enhanced Ferroelectric Phase Transition (2020, background): “Other seminal works studying control of matter by light include Floquet engineering of electronic band structures [8–12], and photo-induced pumping by ultrashort laser pulses for creating metastable nonequilibrium states [13–28].”
- Ultrafast optical spectroscopy of strongly correlated materials and high-temperature superconductors: a non-equilibrium approach (2016, background): “Various questions remain open and the debate is lively on both the possibility of observing the onset of quantum coherent transport on ultrashort time scales [512,513] as well as on the theoretical scenarios disclosing the possibility of driving, by ultrashort electric field, the formation of a supe”
- Colloquium: Nonthermal pathways to ultrafast control in quantum materials (2021, background): “…theoretical activity involving nonequilibrium superconductivity (Denny et al., 2015; Raines, Stanev, and Galitski, 2015; Kim et al., 2016; Knap et al., 2016; Komnik and Thorwart, 2016; Okamoto, Cavalleri, and Mathey, 2016; Sentef et al., 2016, 2017; Babadi et al., 2017; Coulthard et al.,…”
- Light-driven ultrafast phonomagnetism (2019, background): “Recently, selective excitation of elementary vibrations of the crystal lattice (phonons) by ultrashort pulses of light has emerged as a novel, low-energy route to control material properties, extending strain engineering to the ultrafast timescales [6–12].”