Quantum information metrics of a multi-level atom interacting with an SU(1;1) quantum amplifier systemAhmed A. Zahia, Hasnaa M. Saad, S. I. Ali, M. M. A. Ahmed and A.-S. F. ObadaEPJ Quantum Technol., 12 1 (2025) 90DOI: https://doi.org/10.1140/epjqt/s40507-025-00394-7