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The theory of parametrically amplified electron-phonon superconductivity

Abstract: Recent progress in ultrafast pump-probe spectroscopy experiments has resulted in a variety of studies into the optical manipulation of ordered phases and enabled the examination of far-from-equilibrium many body dynamics. These developments have lead to the demonstration of possible light induced superconducting states existing at temperatures far beyond the critical temperatureTc. With these results as motivation, Babadi et al., have developed a comprehensive theoretical model describing how lattice distortions in driven electron-phonon systems can provide the underlying mechanism for enhanced electron-phonon coupling and hence Cooper pairing. Furthermore, they have explored how a near resonant driving force can lead to parametric phonon generation and electronic heating that result in the destruction of this induced superconducting state.