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

AuthorsGarcia-Ramos, J.E.; Arias, José María; Dukelsky, Jorge
KeywordsQuantum phase transition
Proton-neutron interacting boson model
Catastrophe theory
Issue Date2014
CitationPhysics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics 736: 333- 338 (2014)
AbstractWe 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 [1-3] 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. © 2014 The Authors.
Identifiersdoi: 10.1016/j.physletb.2014.07.038
issn: 0370-2693
Appears in Collections:(CFMAC-IEM) Artículos
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