Exchange effects in plasmas: the case of low-frequency dynamics

TL;DR

This paper develops a kinetic plasma model incorporating fermion exchange effects to explore quantum phenomena in low-frequency plasma dynamics, specifically ion acoustic waves, highlighting differences from classical models and potential applications.

Contribution

The paper introduces a novel kinetic plasma model that includes fermion exchange effects, advancing the understanding of quantum influences in plasma behavior.

Findings

Exchange effects significantly alter ion acoustic wave dynamics.

The model shows differences from classical plasma models in low-frequency regimes.

Potential for exploring quantum phenomena in plasma systems.

Abstract

Recently, there has been a surge in the interest of non-equilibrium collective quantum models, where particle dispersion and spin are examples of effects taken into account. Here, we derive a kinetic plasma model con- taining fermion exchange effects. Exchange interactions are of great importance in many systems, and have no classical analogy. Our model therefore constitute a possible probe of collective quantum phenomena in new regimes. As an example, we consider the influence of exchange effect on low frequency dynamics, in partic- ular ion acoustic waves. Comparisons to related computational techniques are given and the differences are highlighted. Furthermore, we discuss the applicability of our model, its limitations and possible extensions.