Quantum Phase Transitions in Nuclei

P. Van Isacker 1
1 Théorie
GANIL - Grand Accélérateur National d'Ions Lourds
Abstract : Quantum phase transitions describe the behaviour of quantum systems as a function of one or several control parameter(s), related to the interaction between the constituent particles. Of primary interest are the critical points where the system evolves from an 'ordered' into a 'disordered' phase with lower symmetry, reflected (in the infinite-size limit) by a non-analytic change in an order parameter. In nuclei, quantum phase transitions have been mostly studied in the context of algebraic models such as the interacting boson model. Irrespective of the successes or failures of this model to describe actual data, its Hamiltonian has been shown to display a rich variety of phase-transitional behaviour where the connections with phenomena or concepts such as coexistence, regular and chaotic motion, dynamical symmetries (exact or partial) and critical-point symmetries can be explored. Some recent advances in this field will be reviewed in this talk.
Type de document :
Communication dans un congrès
2nd European Nuclear Physics Conference - EuNPC 2012, Sep 2012, Bucharest, Romania

Contributeur : Michel Lion <>
Soumis le : mercredi 19 septembre 2012 - 12:55:13
Dernière modification le : vendredi 11 septembre 2015 - 09:57:08


  • HAL Id : in2p3-00733725, version 1



P. Van Isacker. Quantum Phase Transitions in Nuclei. 2nd European Nuclear Physics Conference - EuNPC 2012, Sep 2012, Bucharest, Romania. <in2p3-00733725>




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