Abstract
Ultrashort laser pulses allow for optical control of superconductivity on picosecond timescales. Intriguing experiments at mid-IR and THz frequencies using tailored excitation pulses tuned resonantly to specific phonon modes have been shown to induce transient superconducting states even far above the equilibrium transition temperature (Tc). So far, experiments with light-induced superconductivity can be roughly divided into two classes: on the one hand the light pulses trigger the interplay of competing order parameters in favor of superconductivity, while in the second class of experiments a transient superconducting coherence is induced and dynamically stabilized.
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