Open problems in microscopic theory of large-amplitude collective motion

TL;DR

This paper reviews the ongoing challenges in developing a microscopic theory for large-amplitude collective motion in nuclei, highlighting shape coexistence and mixing phenomena, and discusses open problems in rotating cold nuclei.

Contribution

It identifies key open problems and current challenges in formulating a comprehensive microscopic theory for large-amplitude collective nuclear phenomena.

Findings

Shape coexistence/mixing phenomena exemplify large-amplitude collective motion.

Current theories face fundamental challenges in describing quantum collective phenomena.

Open problems remain in understanding rapidly rotating cold nuclei.

Abstract

Construction of the microscopic theory of large-amplitude collective motion, capable of describing a wide variety of quantum collective phenomena in nuclei, is a long-standing and fundamental subject in the study of nuclear many-body systems. Present status of the challenge toward this goal is discussed taking the shape coexistence/mixing phenomena as typical manifestations of the large-amplitude collective motion at zero temperature. Some open problems in rapidly rotating cold nuclei are also briefly discussed in this connection.