Interpretation of the quasiparticle plus triaxial rotor model

TL;DR

This paper explores classical interpretations of the quasiparticle plus triaxial rotor model in nuclear physics, introducing new visualization methods and analyzing wobbling phenomena and axis-flip regimes.

Contribution

It introduces novel methods using spin coherent and squeezed states to interpret quantum results and clarifies the topological aspects of wobbling in rotating nuclei.

Findings

Spin coherent state map visualizes angular momentum geometry effectively.

Topological analysis of wobbling clarifies transverse and longitudinal regimes.

First analysis of the transitional axis-flip regime in this context.

Abstract

We discuss in depth the application of the classical concepts for interpreting the quantal results from the triaxial rotor core without and with odd-particle. The corresponding limitations caused by the discreteness and finiteness of the angular momentum Hilbert space and the extraction of the relevant features from the complex wave function and distributions of various angular momentum components are discussed in detail. New methods based on spin coherent states and spin squeezed states are introduced. It is demonstrated that the spin coherent state map is a powerful tool to visualize the angular momentum geometry of rotating nuclei. The topological nature of the concepts of transverse and longitudinal wobbling is clarified and the transitional axis-flipregime is analysed for the first time.