Driven transverse shear waves in a strongly coupled dusty plasma
P. Bandyopadhyay, G. Prasad, A. Sen, P. K. Kaw
TL;DR
This study experimentally investigates the dispersion properties of transverse shear waves in a strongly coupled dusty plasma, confirming viscoelastic theoretical predictions within a specific frequency range.
Contribution
It provides the first experimental measurement of transverse shear wave dispersion in a strongly coupled dusty plasma, validating viscoelastic theory.
Findings
Good agreement between experimental data and viscoelastic theory
Dispersion relation obtained over 0.1 Hz to 2 Hz
Confirmed transverse shear wave existence in strongly coupled dusty plasma
Abstract
The linear dispersion properties of transverse shear waves in a strongly coupled dusty plasma are experimentally studied by exciting them in a controlled manner with a variable frequency external source. The dusty plasma is maintained in the strongly coupled fluid regime with (1 < Gamma << Gamma_c) where Gamma is the Coulomb coupling parameter and Gamma_c is the crystallization limit. A dispersion relation for the transverse waves is experimentally obtained over a frequency range of 0.1 Hz to 2 Hz and found to show good agreement with viscoelastic theoretical results.
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