Engineering the electromagnetic environment of a quantum emitter gives rise to a plethora of exotic light -matter interactions. In particular, photonic lattices can seed long-lived atom-photon bound states inside photonic band gaps. Here, we report on the concept and implementation of a novel microwave architecture consisting of an array of compact superconducting resonators in which we have embedded two frequency -tunable artificial atoms. We study the atom-field interaction and access previously unexplored coupling regimes, in both the single-and double-excitation subspace. In addition, we demonstrate coherent interactions between two atom-photon bound states, in both resonant and dispersive regimes, that are suitable for the implementation of SWAP and CZ two-qubit gates. The presented architecture holds promise for quantum simulation with tunable-range interactions and photon transport experiments in the nonlinear regime.

Marco Scigliuzzo, Giuseppe Calaj??, Francesco Ciccarello, Daniel Perez Lozano, Andreas Bengtsson, Pasquale Scarlino, et al. (2022). Controlling Atom-Photon Bound States in an Array of Josephson-Junction Resonators. PHYSICAL REVIEW. X, 12(3), 031036-1-031036-22 [10.1103/physrevx.12.031036].

Controlling Atom-Photon Bound States in an Array of Josephson-Junction Resonators

Francesco Ciccarello;
2022-09-12

Abstract

Engineering the electromagnetic environment of a quantum emitter gives rise to a plethora of exotic light -matter interactions. In particular, photonic lattices can seed long-lived atom-photon bound states inside photonic band gaps. Here, we report on the concept and implementation of a novel microwave architecture consisting of an array of compact superconducting resonators in which we have embedded two frequency -tunable artificial atoms. We study the atom-field interaction and access previously unexplored coupling regimes, in both the single-and double-excitation subspace. In addition, we demonstrate coherent interactions between two atom-photon bound states, in both resonant and dispersive regimes, that are suitable for the implementation of SWAP and CZ two-qubit gates. The presented architecture holds promise for quantum simulation with tunable-range interactions and photon transport experiments in the nonlinear regime.
Settore FIS/03 - Fisica Della Materia
https://journals.aps.org/prx/abstract/10.1103/PhysRevX.12.031036
Marco Scigliuzzo, Giuseppe Calaj??, Francesco Ciccarello, Daniel Perez Lozano, Andreas Bengtsson, Pasquale Scarlino, et al. (2022). Controlling Atom-Photon Bound States in an Array of Josephson-Junction Resonators. PHYSICAL REVIEW. X, 12(3), 031036-1-031036-22 [10.1103/physrevx.12.031036].
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Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/10447/574286
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