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Quantum Phase Transitions in Nuclei
Van Isacker P.
2nd European Nuclear Physics Conference - EuNPC 2012, Bucharest : Roumanie (2012) - http://hal.in2p3.fr/in2p3-00733725
Physique/Physique Nucléaire Théorique
Quantum Phase Transitions in Nuclei
P. Van Isacker1
1 :  GANIL - Grand Accélérateur National d'Ions Lourds
http://www.ganil-spiral2.eu
CNRS : UPR3266 – IN2P3 – CEA : DSM/GANIL
Bvd Henri Becquerel - BP 55027 - 14076 CAEN CEDEX 5
France
Théorie
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.

Communications sans actes
20/09/2012

2nd European Nuclear Physics Conference - EuNPC 2012
Bucharest
Roumanie
16/09/2012
21/09/2012
Piet Van Isacker