Icosahedral Skyrmions

Details Icosahedral Skyrmions Icosahedral Skyrmions

2002-10-16

arxiv.org/abs/hep-th/0210147v1

J.Math.Phys. 44 (2003) 3543-3554

Physics

High Energy Physics

High Energy Physics - Theory

15 pages, including 4 figures

Scientific paper

10.1063/1.1584209

In this paper we aim to determine the baryon numbers at which the minimal energy Skyrmion has icosahedral symmetry. By comparing polyhedra which arise as minimal energy Skyrmions with the dual of polyhedra that minimize the energy of Coulomb charges on a sphere, we are led to conjecture a sequence of magic baryon numbers, B=7,17,37,67,97,... at which the minimal energy Skyrmion has icosahedral symmetry and unusually low energy. We present evidence for this conjecture by applying a simulated annealing algorithm to compute energy minimizing rational maps for all degrees upto 40. Further evidence is provided by the explicit construction of icosahedrally symmetric rational maps of degrees 37, 47, 67 and 97. To calculate these maps we introduce two new methods for computing rational maps with Platonic symmetries.

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