Strong spin-photon coupling Using a complex experimental setup, researchers Researchers from the SNI network have achieved strong cou- from the SNI network achieved strong coupling pling between an electron spin and a single photon. Normally, between an electron spin and a photon. (Image: A. Pally, Department of Physics, University of Ba- there is only very weak coupling between a single photon and sel) an electron spin. To achieve strong coupling, the researchers therefore used a special indium arsenide crystal structure, which couples the electron spin naturally to its motional degree of freedom, thereby making it open to interaction with a mi- crowave photon. Original publication: https://www.nature.com/articles/s41467-024- 45235-w SNI post: https://bit.ly/40Q2fdG 32 SNI Annual Report 2024