1.
Phys Rev Lett
; 98(6): 067204, 2007 Feb 09.
Article
in English
| MEDLINE
| ID: mdl-17358982
ABSTRACT
We investigate the behavior of a quantum resonator coupled to a superconducting single-electron transistor (SSET) tuned to the Josephson quasiparticle resonance and show that the dynamics is similar in many ways to that found in a micromaser. Coupling to the SSET can drive the resonator into nonclassical states of self-sustained oscillation via either continuous or discontinuous transitions. Increasing the coupling further leads to a sequence of transitions and regions of multistability.