Exchange effects in plasmas: The case of low-frequency dynamics
Artikel i vetenskaplig tidskrift, 2013

Recently, there has been a surge of interest in nonequilibrium collective quantum models, where particle dispersion and spin are examples of effects taken into account. Here, we derive a kinetic plasma model containing fermion exchange effects. Exchange interactions are of great importance in many systems and have no classical analogy. Our model therefore constitutes a possible probe of collective quantum phenomena in other regimes. As an example, we consider the influence of the exchange effect on low-frequency dynamics, in particular 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.

ION-ACOUSTIC-WAVES

SPIN

PLASMAS

QUANTUM

COLLISIONS

DIELECTRIC FUNCTION

KINETIC-EQUATION

DISPERSION

GASES

Författare

J. Zamanian

Mattias Marklund

Chalmers, Teknisk fysik, Kondenserade materiens teori

G. Brodin

Physical Review E - Statistical, Nonlinear, and Soft Matter Physics

1539-3755 (ISSN)

Vol. 88 6-

Ämneskategorier

Fysik

DOI

10.1103/PhysRevE.88.063105