A Schrödinger cat-like state laser with zero diffusion F. de Oliveira Neto, M. A. de Ponte and M. H. Y. Moussa Eur. Phys. J. Plus, 138 8 (2023) 762 Published online: 28 August 2023 DOI: 10.1140/epjp/s13360-023-04366-7