Hard tetrahedron model
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The hard tetrahedron model.
Maximum packing fraction
It has recently been shown that regular tetrahedra are able to achieve packing fractions as high as [1] (the hard sphere packing fraction is [2]). This is in stark contrast to work as recent as in 2006, where it was suggested that the "...regular tetrahedron might even be the convex body having the smallest possible packing density"[3].
References
- ↑ Amir Haji-Akbari, Michael Engel, Aaron S. Keys, Xiaoyu Zheng, Rolfe G. Petschek, Peter Palffy-Muhoray and Sharon C. Glotzer "Disordered, quasicrystalline and crystalline phases of densely packed tetrahedra", Nature 462 pp. 773-777 (2009)
- ↑ Neil J. A. Sloane "Kepler's conjecture confirmed", Nature 395 pp. 435-436 (1998)
- ↑ J. H. Conway and S. Torquato "Packing, tiling, and covering with tetrahedra", Proceedings of the National Academy of Sciences of the United States of America 103 10612-10617 (2006)
Related reading