We show that nonlinear response of a quantum oscillator displays antiresonant dips and resonant peaks with varying frequency of the driving field. The effect is a consequence of special symmetry and is related to resonant multiphoton mixing of several pairs of oscillator states at a time. We discuss the possibility to observe the antiresonance and the associated multiphoton Rabi oscillations in Josephson junctions.
@article{arxiv.cond-mat/0410588,
title = {Multiphoton antiresonance},
author = {M. I. Dykman and M. V. Fistul},
journal= {arXiv preprint arXiv:cond-mat/0410588},
year = {2009}
}