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Methods of Ex Situ and In Situ Investigations of Structural Transformations: The Case of Crystallization of Metallic Glasses
Published on: June 7, 2018
Microscopic description of nuclear quantum phase transitions.
T Niksić1, D Vretenar, G A Lalazissis
1Physics Department, University of Zagreb, Bijenicka 32, Zagreb, Croatia.
Physical Review Letters
|October 13, 2007
Summary
This study explores shape transitions in Neodymium (Nd) isotopes using an advanced relativistic mean-field framework. The model accurately describes quantum shape phase transitions, including critical point phenomena in nuclear excitation spectra.
Area of Science:
- Nuclear Physics
- Quantum Mechanics
- Theoretical Physics
Background:
- Nuclear shape transitions are crucial for understanding nuclear structure.
- Existing models often struggle to capture the complexities of critical phenomena in these transitions.
Purpose of the Study:
- To investigate shape transitions in Neodymium (Nd) isotopes.
- To apply an extended relativistic mean-field framework incorporating symmetry restoration and deformation fluctuations.
- To analyze the critical point of quantum shape phase transitions.
Main Methods:
- Utilizing a relativistic mean-field framework.
- Incorporating correlations for symmetry restoration.
- Accounting for quadrupole deformation fluctuations.
- Employing a microscopic self-consistent approach with global effective interactions.
Main Results:
- The framework successfully describes general features of spherical-deformed nuclear transitions.
- Singular properties of excitation spectra at the quantum shape phase transition critical point are reproduced.
- Transition rates at the critical point are accurately modeled.
Conclusions:
- The extended relativistic mean-field approach provides a robust microscopic description of nuclear shape transitions.
- This model accurately captures the unique characteristics of quantum shape phase transitions, including critical point behavior.
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