Rotary photon drag at the earth’s rotation rate in a Sagnac interferometerSana Ullah, Arif Ullah, M. Imtiaz Khan, Ashfaq Ahmad and Imran KhanEur. Phys. J. Plus, 140 3 (2025) 218DOI: https://doi.org/10.1140/epjp/s13360-025-06173-8