Simple approach to the chaos-order contributions and symmetry breaking in nuclear spectra
| Autor: | A. I. Levon, Alexander G. Magner, S. V. Radionov |
|---|---|
| Rok vydání: | 2018 |
| Předmět: |
Physics
Nuclear and High Energy Physics Angular momentum Level repulsion 010308 nuclear & particles physics Poisson distribution 01 natural sciences symbols.namesake Distribution (mathematics) Quantum state 0103 physical sciences symbols Wigner distribution function Linear approximation Symmetry breaking Statistical physics 010306 general physics |
| Zdroj: | The European Physical Journal A. 54 |
| ISSN: | 1434-601X 1434-6001 |
| DOI: | 10.1140/epja/i2018-12645-8 |
| Popis: | The simple one-parameter nearest neighbor-spacing distribution (NNSD) is suggested for statistical analysis of nuclear spectra. This distribution is derived within the Wigner-Dyson approach in the linear approximation for the level repulsion density of quantum states. The obtained NNSD gives the individual information on the Wigner and Poisson contributions in agreement with that of the statistical experimental distributions of collective states in deformed nuclei. Using this NNSD, one finds that the symmetry breaking due to the fixing of projections of the angular momentum of collective states enhances a chaos as a shift of the NNSD from the Poisson to Wigner distribution behavior. |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|
Full text from SpringerLink