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Cavity mediated coherent coupling of magnetic moments
- Source :
- Phys. Rev. A 93, 021803 (2016)
- Publication Year :
- 2015
-
Abstract
- We demonstrate the long range strong coupling of magnetostatic modes in spatially separated ferromagnets mediated by a microwave frequency cavity. Two spheres of yttrium iron garnet are embedded in the cavity and their magnetostatic modes probed using a dispersive measurement technique. We find they are strongly coupled to each other even when detuned from the cavity modes. We investigate the dependence of the magnet-magnet coupling on the cavity detuning $\Delta$, and find a $1/\Delta$ dependence also characteristic of cavity-coupled superconducting qubits. Dark states of the coupled magnetostatic modes of the system are observed, and ascribed to mismatches between the symmetries of the modes and the drive field.<br />Comment: 13 pages, 4 figures
Details
- Database :
- arXiv
- Journal :
- Phys. Rev. A 93, 021803 (2016)
- Publication Type :
- Report
- Accession number :
- edsarx.1506.06049
- Document Type :
- Working Paper
- Full Text :
- https://doi.org/10.1103/PhysRevA.93.021803