Numerical study of laser synapse connecting Hindmarsh–Rose neurons R. Jaimes-Reátegui, J. M. Reyes-Estolano, J. H. García-López, G. Huerta-Cuellar, C. E. Rivera-Orozco and A. N. Pisarchik Eur. Phys. J. Spec. Top., 231 3 (2022) 341-350 Published online: 08 January 2022 DOI: 10.1140/epjs/s11734-021-00357-w