Converting microwave signals onto light using 2D magnetic materials links isolated quantum processors over fiber-optic networks

https://www.eurekalert.org/news-releases/1144473

"via magnons inside layered magnetic semiconductor chromium sulfide bromide, operating as transducer modulating excitons subsequently imprinting original microwave data onto reflected laser light... conversion achieves approximately 300 MHz bandwidth in bulk crystal without requiring external optical or microwave resonators...material's layered structure allows it to be thinned to just a few atomic layers, offering a flexible and scalable platform to build more compact hybrid quantum devices"

Related: Magnets could help quantum computers talk to each other, says researcher
https://phys.org/news/2026-09-magnets-quantum.html