Shear viscosity of nuclear matter

TL;DR

This paper investigates how the shear viscosity of neutron-rich nuclear matter varies with density, temperature, and isospin asymmetry using a relaxation time approach with isospin- and momentum-dependent interactions.

Contribution

It introduces the concept of symmetry shear viscosity and explores its dependence on density and temperature, providing new insights into nuclear matter properties.

Findings

Shear viscosity increases with density and temperature.

Symmetry shear viscosity exhibits distinct density and temperature dependence.

The study enhances understanding of transport properties in neutron-rich nuclear matter.

Abstract

In this talk I report my recent study on the shear viscosity of neutron-rich nuclear matter from a relaxation time approach. An isospin- and momentum-dependent interaction is used in the study. Effects of density, temperature, and isospin asymmetry of nuclear matter on its shear viscosity have been discussed. Similar to the symmetry energy, the symmetry shear viscosity is defined and its density and temperature dependence are studied.