Phase Diagram of the Proton-Neutron Interacting Boson Model

Abstract

We study the phase diagram of the proton--neutron interacting boson model (IBM--2) with special emphasis on the phase transitions leading to triaxial phases. The existence of a new critical point between spherical and triaxial shapes is reported.

Accepted in PRL. 4 pages, 5 figures

References in corpus (2)

• Quantum phase transitions
• Quantum Phase Transitions in the Interacting Boson Model: Integrability, level repulsion and level crossing

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