Quantum entanglement in a four-partite hybrid system containing three macroscopic subsystems Clóvis Corrêa Jr. and A. Vidiella-Barranco Eur. Phys. J. Plus, 137 4 (2022) 473 Published online: 17 April 2022 DOI: 10.1140/epjp/s13360-022-02696-6