Resonant coupling of a SQUID to a mechanical resonator
NEST, Scuola Normale Superiore & CNR-INFM - Piazza dei Cavalieri 7, I-56126 Pisa, Italy, EU
2 Kavli Institute of Nanoscience, Delft University of Technology - Lorentzweg 1, 2628 CJ Delft, The Netherlands, EU
Corresponding author: firstname.lastname@example.org
Accepted: 20 May 2010
We analyze the properties of a mechanical resonator embedded into a quantum SQUID and analyze under which conditions it is possible to realize a resonant coupling between the SQUID and the resonator. We find, within the present technology, how it is possible to tune the system into the regime where the plasma frequency of the SQUID matches the resonator frequency and maximizes the corresponding coupling. In these conditions the doubly degenerate quantum level of the system is split by the coupling between the SQUID and the resonator.
PACS: 85.25.Dq – Superconducting quantum interference devices (SQUIDs) / 74.50.+r – Tunneling phenomena; Josephson effects / 85.85.+j – Micro- and nano-electromechanical systems (MEMS/NEMS) and devices
© EPLA, 2010