6533b7defe1ef96bd1275d12
RESEARCH PRODUCT
Controlling Atom-Photon Bound States in an Array of Josephson-Junction Resonators
Marco ScigliuzzoGiuseppe CalajóFrancesco CiccarelloDaniel Perez LozanoAndreas BengtssonPasquale ScarlinoAndreas WallraffDarrick ChangPer DelsingSimone Gasparinettisubject
quantumPhotonics:Física [Àrees temàtiques de la UPC]latticesFotònicaedgeGeneral Physics and Astronomylight-matter interactionsCircuit QED. Waveguide QED. Quantum information processing implementationsSettore FIS/03 - Fisica Della Materiadescription
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.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2022-09-12 |