Quantum magnonics: The magnon meets the superconducting qubit |
| |
Institution: | 1. Research Center for Advanced Science and Technology (RCAST), The University of Tokyo, Meguro-ku, Tokyo 153-8904, Japan;2. Center for Emergent Matter Science (CEMS), RIKEN, Wako, Saitama 351-0198, Japan |
| |
Abstract: | The techniques of microwave quantum optics are applied to collective spin excitations in a macroscopic sphere of a ferromagnetic insulator. We demonstrate, in the single-magnon limit, strong coupling between a magnetostatic mode in the sphere and a microwave cavity mode. Moreover, we introduce a superconducting qubit in the cavity and couple the qubit with the magnon excitation via the virtual photon excitation. We observe the magnon–vacuum-induced Rabi splitting. The hybrid quantum system enables generation and characterization of non-classical quantum states of magnons. |
| |
Keywords: | Magnon Ferromagnet Yttrium-iron garnet Superconducting qubit Microwave Quantum optics Magnon Ferromagnétisme Grenat de fer et d'yttrium Bits quantiques supraconducteurs Micro-ondes Optique quantique |
本文献已被 ScienceDirect 等数据库收录! |
|