We show that minimizers of the Heitmann–Radin energy (Heitmann and Radin in J Stat Phys 22(3):281–287, 1980) are unique if and only if the particle number N belongs to an infinite sequence whose first thirty-five elements are 1, 2, 3, 4, 5, 7, 8, 10, 12, 14, 16, 19, 21, 24, 27, 30, 33, 37, 40, 44, 48, 52, 56, 61, 65, 70, 75, 80, 85, 91, 96, 102, 108, 114, 120 (see the paper for a closed-form description of this sequence). The proof relies on the discrete differential geometry techniques introduced in De Luca and Friesecke (Crystallization in two dimensions and a discrete Gauss–Bonnet Theorem, 2016).
Classification of Particle Numbers with Unique Heitmann–Radin Minimizer
De Luca, Lucia;
2017-01-01
Abstract
We show that minimizers of the Heitmann–Radin energy (Heitmann and Radin in J Stat Phys 22(3):281–287, 1980) are unique if and only if the particle number N belongs to an infinite sequence whose first thirty-five elements are 1, 2, 3, 4, 5, 7, 8, 10, 12, 14, 16, 19, 21, 24, 27, 30, 33, 37, 40, 44, 48, 52, 56, 61, 65, 70, 75, 80, 85, 91, 96, 102, 108, 114, 120 (see the paper for a closed-form description of this sequence). The proof relies on the discrete differential geometry techniques introduced in De Luca and Friesecke (Crystallization in two dimensions and a discrete Gauss–Bonnet Theorem, 2016).File in questo prodotto:
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