We study a single-level quantum dot strongly coupled to a superconducting lead and tunnel-coupled to a normal electrode which can exchange energy with a single-mode resonator. We show that a such system can sustain lasing characterized by a sub-Poissonian Fock-state distribution of the resonator. The lasing regime is clearly identifiable in the subgap transport regime: in the resonant case, the current is pinned to the maximum value achievable in this hybrid nanostructure.
@article{arxiv.1904.12278,
title = {Single atom laser in normal-superconductor quantum dots},
author = {Gianluca Rastelli and Michele Governale},
journal= {arXiv preprint arXiv:1904.12278},
year = {2019}
}