Collective motion in quantum diffusive environment

TL;DR

This paper investigates how dissipation affects large-scale collective motion in nuclei, deriving coupled equations to describe the interplay between classical and quantum nuclear dynamics.

Contribution

It introduces a novel approach combining cranking and dynamical equations to analyze dissipation in nuclear collective motion.

Findings

Different dynamical regimes influence dissipation behavior.

Coupled equations reveal the relationship between intrinsic and collective nuclear states.

Implications for understanding energy diffusion in nuclear systems.

Abstract

The general problem of dissipation in macroscopic large-amplitude collective motion and its relation to energy diffusion of intrinsic degrees of freedom of a nucleus is studied. By applying the cranking approach to the nuclear many-body system, a set of coupled dynamical equations for the collective classical variable and the quantum mechanical occupancies of the intrinsic nuclear states is derived. Different dynamical regimes of the intrinsic nuclear motion and its consequences on time properties of collective dissipation are discussed.