Source: https://quantum-journal.org/papers/q-2018-03-27-58/
Timestamp: 2019-04-25 22:18:19+00:00

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1Department of Physics, McGill University, Montréal, Québec, Canada.
Citation: Quantum 2, 58 (2018).
We analyze a modified Bose-Hubbard model, where two cavities having on-site Kerr interactions are subject to two-photon driving and correlated dissipation. We derive an exact solution for the steady state of this interacting driven-dissipative system, and use it show that the system permits the preparation and stabilization of pure entangled non-Gaussian states, so-called entangled cat states. Unlike previous proposals for dissipative stabilization of such states, our approach requires only a linear coupling to a single engineered reservoir (as opposed to nonlinear couplings to two or more reservoirs). Our scheme is within the reach of state-of-the-art experiments in circuit QED.
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