RT Journal Article
T1 Disentangling phase transitions and critical points in the proton–neutron interacting boson model by catastrophe theory
A1 García Ramos, José Enrique
A1 Arias Carrasco, José Miguel
A1 Dukelsky, J.
K1 Proton-neutron interacting boson model
K1 Quantum phase transition
K1 Catastrophe theory
AB 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.
PB Elsevier
SN 0370-2693
SN 1873-2445
YR 2014
FD 2014
LK http://hdl.handle.net/10272/10851
UL http://hdl.handle.net/10272/10851
LA eng
NO García Ramos, J.E., Arias Carrasco, J.M., Dukelsky, J.: "Disentangling phase transitions and critical points in the proton–neutron interacting boson model by catastrophe theory". Physics Letters B. Vol. 736, págs. 333–338, (2014).
NO We thank fruitful discussions with J. Margalef-Roig and S. Miret-Artes. This work was partially supported by the Spanish Ministerio de Economia y Competitividad and the European Regional Development Fund (FEDER) under Project Nos. FIS2011-28738-C02-01, FIS2011-28738-C02-02, FIS2012-34479, and by Junta de Andalucia under Project Nos. FQM160, P11-FQM-7632 and FQM318, as well as by Spanish Consolider-Ingenio 2010 (CPANCSD2007-00042).
DS Repositorio Institucional de la Universidad de Huelva
RD 31 may 2026