Two oscillators coupled to a two-level system which in turn is coupled to an infinite number of oscillators (reservoir) are considered, bringing to light the occurrence of synchronization. A detailed analysis clarifies the physical mechanism that forces the system to oscillate at a single frequency with a predictable and tunable phase difference. Finally, the scheme is generalized to the case of N oscillators and M(<N) two-level systems.
@article{arxiv.1705.04667,
title = {Synchronizing Quantum Harmonic Oscillators through Two-Level Systems},
author = {B. Militello and H. Nakazato and A. Napoli},
journal= {arXiv preprint arXiv:1705.04667},
year = {2017}
}