Physics – Condensed Matter – Other Condensed Matter
Scientific paper
2005-09-19
Phys. Rev. E, 73, 036108 (2006)
Physics
Condensed Matter
Other Condensed Matter
Revisions in Tables and References
Scientific paper
10.1103/PhysRevE.73.036108
Given $N$ unit points charges on the surface of a unit conducting sphere, what configuration of charges minimizes the Coulombic energy $\sum_{i>j=1}^N 1/r_{ij}$? Due to an exponential rise in good local minima, finding global minima for this problem, or even approaches to do so has proven extremely difficult. For \hbox{$N = 10(h^2+hk+k^2)+ 2$} recent theoretical work based on elasticity theory, and subsequent numerical work has shown, that for $N \sim >500$--1000 adding dislocation defects to a symmetric icosadeltahedral lattice lowers the energy. Here we show that in fact this approach holds for all $N$, and we give a complete or near complete catalogue of defect free global minima.
Altschuler Eric Lewin
Perez--Garrido Antonio
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