Strong Coupling of a Spin Ensemble to a Superconducting Resonator

Y. Kubo , F. R. Ong , P. Bertet , D. Vion , V. Jacques , D. Zheng , A. Dr\'eau , J.-F. Roch

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A. Auffeves F. Jelezko J. Wrachtrup M.F. Barthe P. Bergonzo D. Esteve

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classification ❄️ cond-mat.supr-con quant-ph

keywords resonatorcouplingensemblefrequencyspinspinsstrongsuperconducting

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We report the realization of a quantum circuit in which an ensemble of electronic spins is coupled to a frequency tunable superconducting resonator. The spins are Nitrogen-Vacancy centers in a diamond crystal. The achievement of strong coupling is manifested by the appearance of a vacuum Rabi splitting in the transmission spectrum of the resonator when its frequency is tuned through the NV center electron spin resonance.

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Strong Coupling of a Spin Ensemble to a Superconducting Resonator

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