QED background against atomic neutrino process with initial spatial phase Minoru Tanaka, Koji Tsumura, Noboru Sasao, Satoshi Uetake and Motohiko Yoshimura Eur. Phys. J. Plus, 135 3 (2020) 283 Published online: 03 March 2020 DOI: 10.1140/epjp/s13360-020-00290-2