Affiliation:
1. Department of Applied Physics and Ginzton Laboratory, Stanford University , 348 Via Pueblo Mall, Stanford, California 94305, USA
Abstract
We demonstrate strong coupling of gigahertz-frequency nanomechanical resonators to a frequency-tunable superconducting microwave resonator via a galvanically bonded flip-chip method. By tuning the microwave resonator with an external magnetic field, we observe a series of hybridized microwave-mechanical modes and report coupling strengths of ∼15 MHz at cryogenic temperatures. The demonstrated multi-chip approach provides flexible rapid characterization and simplified fabrication and could potentially enable coupling between a variety of quantum systems. Our work represents a step toward a plug-and-play architecture for building more complex hybrid quantum systems.
Funder
National Science Foundation
Air Force Office of Scientific Research
David and Lucile Packard Foundation
Alfred P. Sloan Foundation
Nippon Telegraph and Telephone
Amazon Web Services
U.S. Department of Energy
U.S. Army
Subject
Physics and Astronomy (miscellaneous)