TY  - GEN 
AU  - Gamito, J.
AU  - Arias, J. M.
AU  - Pérez Fernández, P.
AU  - Pérez Bernal, Francisco
PY  - 2022
UR  - https://hdl.handle.net/10481/78499
AB  - The basic Lipkin-Meshkov-Glick model displays a second-order ground-state quantum phase transition and
an excited-state quantum phase transition (ESQPT). The inclusion of an anharmonic term in the Hamiltonian
implies a second ESQPT of a different...
LA  - eng
PB  - American Physical Society
TI  - Excited-state quantum phase transitions in the anharmonic Lipkin-Meshkov-Glick model: Static aspects
DO  - 10.1103/PhysRevE.106.044125
ER  -