Partial and quasi dynamical symmetries in quantum many-body systems

30th International Colloquium on Group Theoretical Methods in Physics

Leviatan, A.^1

Racah Institute of Physics, Hebrew University, Jerusalem

91904, Israel^1

关键词: Dynamical symmetry;    Many-body systems;    Mixed systems;    Nuclear spectroscopy;    Quantum many-body systems;    Quantum phase transitions;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/597/1/012003/pdf
DOI  :  10.1088/1742-6596/597/1/012003

来源: IOP

【 摘 要 】

We introduce the notions of partial dynamical symmetry (PDS) and quasi dynamical symmetry (QDS) and demonstrate their relevance to nuclear spectroscopy, to quantum phase transitions and to mixed systems with regularity and chaos. The analysis serves to highlight the potential role of PDS and QDS towards understanding the emergent "simplicity out of complexity" exhibited by complex many-body systems.