Predication of novel effects in rotational nuclei at high speed

TL;DR

This paper combines advanced theoretical methods to decompose the Hamiltonian of rotating nuclei, aiming to identify and analyze novel phenomena like signature splitting and spin-rotation coupling at high rotational speeds.

Contribution

It introduces a novel decomposition of the cranking covariant density functional theory Hamiltonian to explore new effects in high-speed rotating nuclei.

Findings

Identification of potential novel phenomena such as signature splitting and spin-rotation coupling.

Analysis of the dependence of these phenomena on deformation, angular velocity, and magnetic field.

Discussion on the observability of the predicted effects.

Abstract

The study of high-speed rotating matter is a crucial research topic in physics due to the emergence of novel phenomena. In this paper, we combined cranking covariant density functional theory (CDFT) with a similar renormalization group approach to decompose the Hamiltonian from the cranking CDFT into different Hermit components, including the non-relativistic term, the dynamical term, the spin-orbit coupling, and the Darwin term. Especially, we obtained the rotational term, the term relating to Zeeman effect-like, and the spin-rotation coupling due to consideration of rotation and spatial component of vector potential. By exploring these operators, we aim to identify novel phenomena that may occur in rotating nuclei. Signature splitting, Zeeman effect-like, spin-rotation coupling, and spin current are among the potential novelties that may arise in rotating nuclei. Additionally, we investigated the observability of these phenomena and their dependence on various factors such as nuclear deformation, rotational angular velocity, and strength of magnetic field.