Strong Coupling of a Spin Ensemble to a Superconducting Resonator

Y. Kubo; F. R. Ong; P. Bertet; D. Vion; V. Jacques; D. Zheng; A. Dréau; J.-F. Roch; A. Auffeves; F. Jelezko; J. Wrachtrup; M. F. Barthe; P. Bergonzo; D. Esteve

doi:10.1103/PhysRevLett.105.140502

Strong Coupling of a Spin Ensemble to a Superconducting Resonator

Y. Kubo, F. R. Ong, P. Bertet, D. Vion, V. Jacques, D. Zheng, A. Dréau, J.-F. Roch, A. Auffeves, F. Jelezko, J. Wrachtrup, M. F. Barthe, P. Bergonzo, D. Esteve

DOI 10.1103/PhysRevLett.105.140502 · Physical Review Letters

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Abstract

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 nitrogen-vacancy center electron spin resonance.

Source-reported materials — not catalogue approval

Formula	Reported Tc (K)	Pressure (GPa)	Type
Nb Archive — visibility unverified Source-occurrence policy only; no material identity or catalogue acceptance is inferred from the formula.	—	Pressure not reported	unknown