Nanowerk January 14, 2021
Microwave photon-magnon interaction has emerged in recent years as a promising platform for both classical and quantum information processing. Yet, this interaction had proved impossible to manipulate in real time. By smart engineering, a team of researchers in the US (Argonne National Laboratory, University of Chicago) employed an electrical signal to periodically alter the magnon vibrational frequency and thereby inducing effective magnon-photon interaction resulting in a microwave-magnonic device with on-demand tunability. The device can control the strength of the photon-magnon interaction at any point as information is being transferred between photons and magnons. It can even completely turn the interaction on and off. With this tuning capability, scientists can process and manipulate information in ways that far surpass present-day hybrid magnonic devices. The finding can lead to advances in electronic devices and quantum signal processing…read more. TECHNICAL ARTICLE
A YIG sphere is placed underneath a dielectric resonator inside a copper housing, with a bias magnetic field H along x direction… Credit: Phys. Rev. Lett. 125, 237201, 1 December 2020