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arXiv · 1407.5573

Disentangling phase transitions and critical points in the proton-neutron interacting boson model by catastrophe theory

J. E. Garcia-Ramos·J. M. Arias·J. Dukelsky
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Abstract

We introduce the basic concepts of catastrophe theory needed to derive analytically the phase diagram of the proton-neutron interacting boson model (IBM-2). Previous studies [1,2,3] were based on numerical solutions. We here explain the whole IBM-2 phase diagram including the precise order of the phase transitions in terms of the cusp catastrophe.

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J. E. Garcia-Ramos, J. M. Arias, J. Dukelsky. 2014-07-21. Disentangling phase transitions and critical points in the proton-neutron interacting boson model by catastrophe theory. https://doi.org/10.1016/j.physletb.2014.07.038

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