From extended phase space dynamics to fluid theory

Abstract

We derive a fluid theory for spin-1/2 particles starting from an extended kinetic model based on a spin-projected density matrix formalism. The evolution equation for the spin density is found to contain a pressure-like term. We give an example where this term is important by looking at a linear mode previously found in a spin kinetic model.

4 pages

References in corpus (6)

• Dynamics of spin 1/2 quantum plasmas
• Quantum plasma effects in the classical regime
• Effects of the $g$-factor in semi-classical kinetic plasma theory
• Spin solitons in magnetized pair plasmas
• Observation of Anomalous Spin Segregation in a Trapped Fermi Gas
• Ferroplasmas: Magnetic Dust Dynamics in a Conducting Fluid