Higgs-like pair amplitude dynamics in superconductor–quantum-dot hybrids
@article{Kamp2020HiggslikePA, title={Higgs-like pair amplitude dynamics in superconductor–quantum-dot hybrids}, author={M. Kamp and Bj{\"o}rn Sothmann}, journal={Physical Review B}, year={2020}, volume={103}, pages={045414} }
We consider a quantum dot weakly tunnel coupled to superconducting reservoirs. A finite superconducting pair amplitude can be induced on the dot via the proximity effect. We investigate the dynamics of the induced pair amplitude after a quench and under periodic driving of the system by means of a real-time diagrammatic approach. We find that the quench dynamics is dominated by an exponential decay towards equilibrium. In contrast, the periodically driven system can sustain coherent…
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