Decay of Langmuir wave in dense plasmas and warm dense matter

TL;DR

This paper investigates the decay mechanisms of Langmuir waves in various dense plasma conditions using dielectric function theory, revealing significant differences from traditional Landau damping predictions.

Contribution

It applies dielectric function theory to analyze Langmuir wave decay across four plasma regimes, highlighting deviations from conventional Landau damping.

Findings

Decay rates differ notably from Landau damping predictions

Quantum effects influence wave decay in degenerate plasmas

Results applicable to dense plasma and warm dense matter studies

Abstract

The decays of the Langmuir waves in dense plasmas are computed using the dielectric function theory widely used in the solid state physics. Four cases are considered: a classical plasma, a Maxwellian plasma, a degenerate quantum plasma, and a partially degenerate plasma. The result is considerably different from the conventional Landau damping theory.