Intertwined Quantum Phase Transitions in Bose and Bose-Fermi Systems
arXiv:2411.12816 · doi:10.1088/1742-6596/2883/1/012009
Abstract
Pronounced structural changes within individual configurations (Type I QPT), superimposed on an abrupt crossing of these configurations (Type II QPT), define the notion of intertwined quantum phase transitions (QPTs). We discuss and present evidence for such a scenario in finite Bose and Bose-Fermi systems. The analysis is based on algebraic models with explicit configuration mixing, where the two types of QPTs describe shape-phase transitions in-between different dynamical symmetries and shape-coexistence with crossing.
18 pages, 13 figures, talk at Symposium "Symmetries in Science XIX", July 30 - August 4, 2023, Bregenz, Austria