Effect of magnetic field on the velocity autocorrelation and the caging of particles in two-dimensional Yukawa liquids
arXiv:1403.0232 · doi:10.1103/PhysRevE.89.033104
Abstract
We investigate the effect of an external magnetic field on the velocity autocorrelation function and the "caging" of the particles in a two-dimensional strongly coupled Yukawa liquid, via numerical simulations. The influence of the coupling strength on the position of the dominant peak in the frequency spectrum of the velocity autocorrelation function confirms the onset of a joint effect of the magnetic field and strong correlations at high coupling. Our molecular dynamics simulations quantify the decorrelation of the particles' surroundings - the magnetic field is found to increase significantly the caging time, which reaches values well beyond the timescale of plasma oscillations. The observation of the increased caging time is in accordance with findings that the magnetic field decreases diffusion in similar systems.
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Cited by in corpus (5)
- The Effect of Correlations on the Heat Transport in a Magnetized Plasma
- Spontaneous generation of a temperature anisotropy in a strongly coupled magnetized plasma
- Fickian yet non-Gaussian diffusion in two-dimensional Yukawa liquids
- Extended space and time correlations in strongly magnetized plasmas
- Simultaneous effect of an external magnetic field and gas-induced friction on the caging of particles in two-dimensional Yukawa systems