Quantum Robust Stability of a Small Josephson Junction in a Resonant Cavity
arXiv:1301.1748 · doi:10.1109/CCA.2012.6402399
Abstract
This paper applies recent results on the robust stability of nonlinear quantum systems to the case of a Josephson junction in a resonant cavity. The Josephson junction is characterized by a Hamiltonian operator which contains a non-quadratic term involving a cosine function. This leads to a sector bounded nonlinearity which enables the previously developed theory to be applied to this system in order to analyze its stability.
A version of this paper appeared in the proceedings of the 2012 IEEE Multi-conference on Systems and Control