Photon transport in a Bose-Hubbard chain of superconducting artificial atoms

• URL: http://arxiv.org/abs/2011.11454v2
• Date: Tue, 15 Dec 2020 10:36:27 GMT
• Title: Photon transport in a Bose-Hubbard chain of superconducting artificial atoms
• Authors: G.P. Fedorov, S.V. Remizov, D.S. Shapiro, W.V. Pogosov, E. Egorova, I. Tsitsilin, M. Andronik, A.A. Dobronosova, I.A. Rodionov, O.V. Astafiev, and A.V. Ustinov
• Abstract summary: We demonstrate non-equilibrium steady-state photon transport through a chain of five coupled artificial atoms. We show that the system retains many-particle coherence despite being coupled strongly to two open spaces. We argue that proposed architecture may be applied to analog simulation of many-body Floquet dynamics with even larger arrays of artificial atoms.
• Score: 0.0
• License: http://creativecommons.org/licenses/by/4.0/
• Abstract: We demonstrate non-equilibrium steady-state photon transport through a chain of five coupled artificial atoms simulating the driven-dissipative Bose-Hubbard model. Using transmission spectroscopy, we show that the system retains many-particle coherence despite being coupled strongly to two open spaces. We show that system energy bands may be visualized with high contrast using cross-Kerr interaction. For vanishing disorder, we observe the transition of the system from the linear to the nonlinear regime of photon blockade in excellent agreement with the input-output theory. Finally, we show how controllable disorder introduced to the system suppresses this non-local photon transmission. We argue that proposed architecture may be applied to analog simulation of many-body Floquet dynamics with even larger arrays of artificial atoms paving an alternative way to demonstration of quantum supremacy

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