Phase structure of the two-fluid proton-neutron system

Abstract

The phase structure of a two-fluid bosonic system is investigated. The proton-neutron interacting boson model (IBM-2) posesses a rich phase structure involving three control parameters and multiple order parameters. The surfaces of quantum phase transition between spherical, axially-symmetric deformed, and SU*(3) triaxial phases are determined.

RevTeX 4, 4 pages, as published in Phys. Rev. Lett

References in corpus (2)

• Algebraic models of hadron structure: I. Nonstrange baryons
• Observation of the scissors mode and superfluidity of a trapped Bose-Einstein condensed gas

Cited by in corpus (24)

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• Phase diagram for a Cubic Consistent-Q Interacting Boson Model Hamiltonian: signs of triaxiality
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• New features of the triaxial nuclei described with a coherent state model
• Excited-state quantum phase transitions in a two-fluid Lipkin model
• Questioning the wobbling interpretation of low-spin bands in $\gamma$-soft nuclei within the interacting boson-fermion model
• Prolate-oblate asymmetric shape phase transition in the interacting boson model with SU (3) higher-order interactions
• Anomalous collective modes in atomic nuclei within the proton-neutron interacting boson model
• B(E2) anomaly and triaxial deformation in the interacting boson model
• Connecting the X(5)-${\beta }^2$, X(5)-${\beta }^4$, and X(3) models to the shape/phase transition region of the interacting boson model
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• Disentangling phase transitions and critical points in the proton-neutron interacting boson model by catastrophe theory
• B(E2) anomaly and triaxial deformation within a two-fluid SU(3) symmetry
• Phase Structure of the Interacting Vector Boson Model
• Analytic derivation of an approximate SU(3) symmetry inside the symmetry triangle of the Interacting Boson Approximation model
• Triaxial Shapes in the Interacting Vector Boson Model
• Quadrupole and octupole states in ${}^{152}$Sm using the proton-neutron interacting boson model
• Quantum phase transition of two-level atoms interacting with a finite radiation field
• Algebraic solutions for $o(12)\leftrightarrow u(2)\otimes u(10)$ quantum phase transitions in the proton-neutron interacting boson model