Configurational temperature in dusty plasmas

Abstract

The temperature of a dust ensemble in a dusty plasma is one of its most fundamental properties. Here, we present experiments using the configurational temperature as a for the temperature analysis in dusty plasmas. Using a model of the particle interactions, the configurational temperature allows us to determine the temperature of the dust ensemble from measurements of the particle positions, rather than particle velocities. The basic concept will be presented and the technique is applied to two-dimensional finite clusters as well as three-dimensional data from an extended dust cloud. Additionally, the configurational temperature can be used to derive the particle charge and the screening length from a comparison with the standard kinetic temperature.

integrated version with corrections reported in an Erratum

References in corpus (1)

• Accurate particle position measurement from images

Cited by in corpus (4)

• How to define temperature in active systems?
• Extracting Forces from Noisy Dynamics in Dusty Plasmas
• Configurational temperature in active matter. I. Lines of invariant physics in the phase diagram of the Ornstein-Uhlenbeck model
• Configurational temperature in active matter. II. Quantifying the deviation from thermal equilibrium