Phase transitions in atomic nuclei

After reviewing some basic features of the temperature-governed phase-transitions in macroscopic systems and in atomic nuclei we consider non-thermal phase-transitions of nuclear structure in the example of cluster states. Phenomenological and semimicroscopical algebraic cluster models with identical interactions are applied to binary cluster systems of closed and non-closed shell clusters. Phase-transitions are observed in each case between the rotational (rigid molecule-like) and vibrational (shell-like) cluster states. The phase of this finite quantum system shows a quasi-dynamical symmetry.

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Structural Evolution in Atomic Nuclei: Residual Interactions, Quantum Phase Transitions and the Emergence of Collectivity

10.1063/1.2813814 ◽

2007 ◽

Author(s):

R. F. Casten ◽

Ricardo Alarcon ◽

Philip L. Cole ◽

Chaden Djalali ◽

Fernando Umeres

Keyword(s):

Phase Transitions ◽

Quantum Phase Transitions ◽

Structural Evolution ◽

Quantum Phase ◽

Atomic Nuclei

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Quantum Phase Transitions in Atomic Nuclei.

10.1063/1.2939345 ◽

2008 ◽

Author(s):

J. Jolie ◽

A. Dewald ◽

P. Demetriou ◽

R. Julin ◽

S. V. Harissopulos

Keyword(s):

Phase Transitions ◽

Quantum Phase Transitions ◽

Quantum Phase ◽

Atomic Nuclei

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Clusterization and phase-transitions in atomic nuclei

10.1063/1.3628407 ◽

2011 ◽

Cited By ~ 2

Author(s):

J. Darai ◽

J. Cseh ◽

P. O. Hess ◽

Paraskevi Demetriou ◽

Rauno Julin ◽

...

Keyword(s):

Phase Transitions ◽

Atomic Nuclei

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QUANTUM PHASE TRANSITIONS AND NUCLEAR STRUCTURE

International Journal of Modern Physics E ◽

10.1142/s0218301309013117 ◽

2009 ◽

Vol 18 (04) ◽

pp. 965-974

Author(s):

P. CEJNAR ◽

P. STRÁNSKÝ ◽

M. MACEK

Keyword(s):

Phase Transitions ◽

Recent Progress ◽

Quantum Phase Transitions ◽

Theoretical Models ◽

Quantum Phase ◽

Interacting Boson Model ◽

Shape Evolution ◽

Atomic Nuclei ◽

Boson Model ◽

Theoretical Results

We report on recent progress in the description of shape transitions in atomic nuclei. The main experimental signatures are mentioned along with basic theoretical models describing the critical character of the nuclear shape evolution. We then discuss some new theoretical results obtained within the framework of the interacting boson model and related approaches. It is argued that these models can be used to probe some fundamental aspects of quantum phase transitions.

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