Charge Correlations in a Harmonic Trap
Statistical Mechanics
2015-05-30 v1
Abstract
A system of N classical Coulomb charges trapped in a harmonic potential displays shell structure and orientational ordering. The local density profile is well understood from theory, simulation, and experiment. Here, pair correlations are considered for this highly inhomogeneous system for both the fluid and ordered states. In the former, it is noted that there is a close relationship to pair correlations in the uniform OCP. For the ordered state, it is shown that the disordered "tiling" is closely related to the ground state Thomson sites for a single sphere.
Cite
@article{arxiv.1110.2465,
title = {Charge Correlations in a Harmonic Trap},
author = {Jeffrey Wrighton and Hanno Kählert and Torben Ott and Patrick Ludwig and Hauke Thomsen and James Dufty and Michael Bonitz},
journal= {arXiv preprint arXiv:1110.2465},
year = {2015}
}
Comments
8 pages, 3 figues. Results presented at "Strongly Coupled Coulomb Systems", Budapest, Hungary, July 2011. Conference proceedings to be published in "Contribution to Plasma Physics"