Stabilization of quantum manifolds is at the heart of error-protected quantum information storage and manipulation. Nonlinear driven-dissipative processes achieve such stabilization in a hardware efficient manner. Josephson circuits with parametric pump drives implement these nonlinear interactions. In this article, we propose a scheme to engineer a four-photon drive and dissipation on a harmonic oscillator by cascading experimentally demonstrated two-photon processes. This would stabilize a four-dimensional degenerate manifold in a superconducting resonator. We analyze the performance of the scheme using numerical simulations of a realizable system with experimentally achievable parameters.
@article{arxiv.1612.04341,
title = {Generating higher order quantum dissipation from lower order parametric processes},
author = {S. O. Mundhada and A. Grimm and S. Touzard and U. Vool and S. Shankar and M. H. Devoret and M. Mirrahimi},
journal= {arXiv preprint arXiv:1612.04341},
year = {2016}
}