TY - JOUR AU - Wang, Qian AU - PĂ©rez Bernal, Francisco PY - 2021 UR - http://hdl.handle.net/10481/71276 AB - Using the Husimi quasiprobability distribution, we investigate the phase space signatures of excited-state quantum phase transitions (ESQPTs) in the Lipkin-Meshkov-Glick and coupled top models. We show that the ESQPT is evinced by the dynamics of the... LA - eng PB - American Physical Society TI - Signatures of excited-state quantum phase transitions in quantum many-body systems: Phase space analysis DO - 10.1103/PhysRevE.104.034119 ER -