Bloch oscillations were predicted and observed long ago in Josephson junctions, which are thin insulating or conducting layers bridging two superconductors. Here we forward a scheme for utilizing these oscillations to amplify nano-metric mechanical vibrations. Highly coherent non-classical mechanical states can be produced and controlled by simply applying a DC bias current and an in-plane magnetic field. The vibrations induce peaks in the I-V characteristic of the junction and can be detected by simple DC voltage measurements.
@article{arxiv.2011.01344,
title = {Josephson junctions as nanoelectromechanical Bloch oscillators},
author = {T. McDermott and E. Mariani and H. Deng},
journal= {arXiv preprint arXiv:2011.01344},
year = {2020}
}