Quantum phase transitional patterns in the SD-pair shell model

Abstract

Patterns of shape-phase transition in the proton-neutron coupled systems are studied within the $SD$-pair shell model. The results show that some transitional patterns in the $SD$-pair shell model are similar to the $U(5)-SU(3)$, $U(5)-SO(6)$ transitions with signatures of the critical point symmetry of the interacting boson model.

13 pages, 7 figures

References in corpus (3)

• Phase structure of the two-fluid proton-neutron system
• Partial Dynamical Symmetry at Critical-Points of Quantum Phase Transitions
• Simple, empirical order parameter for a first order quantum phase transition in atomic nuclei