Introducing coherent time control to cavity magnon-polariton modes

Wolz, T., Stehli, A., Schneider, A., Boventer, I., Macêdo, R. , Ustinov, A. V., Kläui, M. and Weides, M. (2020) Introducing coherent time control to cavity magnon-polariton modes. Communications Physics, 3, 3. (doi: 10.1038/s42005-019-0266-x)

Abstract

By connecting light to magnetism, cavity magnon-polaritons (CMPs) can link quantum computation to spintronics. Consequently, CMP-based information processing devices have emerged over the last years, but have almost exclusively been investigated with single-tone spectroscopy. However, universal computing applications will require a dynamic and on-demand control of the CMP within nanoseconds. Here, we perform fast manipulations of the different CMP modes with independent but coherent pulses to the cavity and magnon system. We change the state of the CMP from the energy exchanging beat mode to its normal modes and further demonstrate two fundamental examples of coherent manipulation. We first evidence dynamic control over the appearance of magnon-Rabi oscillations, i.e., energy exchange, and second, energy extraction by applying an anti-phase drive to the magnon. Our results show a promising approach to control building blocks valuable for a quantum internet and pave the way for future magnon-based quantum computing research.

• Item Type: Articles
• Additional Information: This work was supported by the European Research Council (ERC) under the Grant Agreement 648011, Deutsche Forschungsgemeinschaft (DFG) within Project No. WE4359/7-1 and INST 121384/138-1 FUGG, through SFB TRR 173/Spin+X, and the Initiative and Networking Fund of the Helmholtz Association. T.W. acknowledges financial support by Helmholtz International Research School for Teratronics (HIRST), A.St. by the Landesgraduiertenförderung (LGF) of the federal state Baden-Württemberg, A.Sch. by the Carl-Zeiss-Foundation and R.M. by the Leverhulme Trust. A.V.U. acknowledges partial support from the Ministry of Education and Science of the Russian Federation in the framework of the contract No. K2-2017-081.
• Status: Published
• Refereed: Yes
• Glasgow Author(s) Enlighten ID: Weides, Professor Martin and Macedo, Dr Rair
• Authors: Wolz, T., Stehli, A., Schneider, A., Boventer, I., Macêdo, R., Ustinov, A. V., Kläui, M., and Weides, M.
• College/School: College of Science and Engineering > School of Engineering > Electronics and Nanoscale Engineering
• Journal Name: Communications Physics
• Publisher: Nature Research
• ISSN: 2399-3650
• ISSN (Online): 2399-3650
• Copyright Holders: Copyright © 2020 The Authors
• First Published: First published in Communications Physics 3: 3
• Publisher Policy: Reproduced under a Creative Commons License