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arXiv · 1212.2856

Anisotropic rare-earth spin ensemble strongly coupled to a superconducting resonator

S. Probst·H. Rotzinger·S. Wünsch·P. Jung·M. Jerger·M. Siegel·A. V. Ustinov·P. A. Bushev
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Abstract

Interfacing photonic and solid-state qubits within a hybrid quantum architecture offers a promising route towards large scale distributed quantum computing. Ideal candidates for coherent qubit interconversion are optically active spins magnetically coupled to a superconducting resonator. We report on a cavity QED experiment with magnetically anisotropic Er3+:Y2SiO5 crystals and demonstrate strong coupling of rare-earth spins to a lumped element resonator. In addition, the electron spin resonance and relaxation dynamics of the erbium spins are detected via direct microwave absorption, without aid of a cavity.

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S. Probst, H. Rotzinger, S. Wünsch, P. Jung, M. Jerger, M. Siegel, A. V. Ustinov, P. A. Bushev. 2012-12-12. Anisotropic rare-earth spin ensemble strongly coupled to a superconducting resonator. https://doi.org/10.1103/physrevlett.110.157001

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