The data for n = 4


The potential
The picture and a description of the configuration
The Gram minimal eigenvalue projection
The Gram middle eigenvalue projection
The Gram largest eigenvalue projection
The Coulomb view
The points in Mathematica format

potential = 3.674234614


The configuration is a regular tetrahedron. All projections show the interesting bandology of the tetrahedron.

[Graphics:n4pic.jpg]

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smallest eigenvalue Gram view

[Graphics:n4g1.jpg]

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second largest eigenvalue Gram view

[Graphics:n4g2.jpg]

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largest eigenvalue Gram view

[Graphics:n4g3.jpg]

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The Coulomb view

[Graphics:n4coul.jpg]

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The points

{{0,0,1.},{0.942808,0,-0.333336}, {-0.471404,0.816497,-0.333332},{-0.471404,-0.816497,-0.333332}}

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Copyright by Neubauer, Schilling, Watkins and Zeitlin (1998).