Cavity magnonics
Babak Zare Rameshti (Iran University of Science and Technology)
Silvia Viola Kusminskiy (Friedrich-Alexander-Universität Erlangen-Nürnberg, Max Planck Institute for the Science of Light, RWTH Aachen University)
James A. Haigh (Hitachi Cambridge Laboratory)
Koji Usami (University of Tokyo, Research Center for Advanced Science and Technology)
Dany Lachance-Quirion (University of Tokyo, Research Center for Advanced Science and Technology)
Yasunobu Nakamura (University of Tokyo, Research Center for Advanced Science and Technology, RIKEN Center for Emergent Matter Science (CEMS))
Can Ming Hu (University of Manitoba)
Gerrit E.W. Bauer (Kavli institute of nanoscience Delft, TU Delft - QN/Bauer Group, Tohoku University, Chinese Academy of Sciences)
Yaroslav M. Blanter (Kavli institute of nanoscience Delft, TU Delft - QN/Blanter Group)
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Abstract
Cavity magnonics deals with the interaction of magnons — elementary excitations in magnetic materials — and confined electromagnetic fields. We introduce the basic physics and review the experimental and theoretical progress of this young field that is gearing up for integration in future quantum technologies. Much of its appeal is derived from the strong magnon–photon coupling and the easily-reached nonlinear regime in microwave cavities. The interaction of magnons with light as detected by Brillouin light scattering is enhanced in magnetic optical resonators, which can be employed to cool and heat magnons. The microwave cavity photon-mediated coupling of a magnon mode to a superconducting qubit enables measurements in the single magnon limit.