Strong coupling in multimode quantum electromechanics
Abstract
Cavity electro-(opto-)mechanics allows us to access not only single isolated but also multiple mechanical modes in a massive object. Here we develop a multi-mode electromechanical system in which a several membrane vibrational modes are coupled to a three-dimensional loop-gap superconducting microwave cavity. The tight confinement of the electric field across a mechanically-compliant narrow-gap capacitor brings the system into the quantum strong coupling regime under a red-sideband pump field. We demonstrate strong coupling between two mechanical modes, which is induced by two-tone parametric drives and mediated by a virtual photon in the cavity. The tunable inter-mechanical-mode coupling can be used to generate entanglement between the mechanical modes.
Cite
@article{arxiv.1602.01554,
title = {Strong coupling in multimode quantum electromechanics},
author = {Atsushi Noguchi and Rekishu Yamazaki and Manabu Ataka and Hiroyuki Fujita and Yutaka Tabuchi and Toyofumi Ishikawa and Koji Usami and Yasunobu Nakamura},
journal= {arXiv preprint arXiv:1602.01554},
year = {2016}
}
Comments
7 pages, 8 figures, 1 table