Density Functional Theory studies of cluster states in nuclei · HackerPapers discussions

Density Functional Theory studies of cluster states in nuclei — mentioned by mncharity

Tue, 24 Sep 2024 21:36:04 GMT

> a single particle with mass and charge FWIW, atomic nuclei have fun substructure. They behave like inhomogeneous sometimes-oblate liquid drops[1] when large, and alpha-particle clusters[2] when small. I wonder if one could craft an introduction to atoms for kids, with rather more "you don't need this for the standardized exams, but here's a bunch of fun stuff you're usually not shown". [1] a plutonium fission model https://imgur.com/a/nlwzLyy [2] fig.4 on page 4 https://arxiv.org/pdf/1406.2473 Note wacky bowling-pin-shaped Neon.

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Density Functional Theory studies of cluster states in nuclei — mentioned by mncharity

Thu, 12 Sep 2019 02:49:14 GMT

Not a physicist, but I spent some time on this, exploring the possibility of a "teach scale down to nuclei, then nuclei up to matter" learning progression for primary school. Nuclei are quasi-classical little balls. It's electrons that are wacky quantum weirdness. Which makes the current pedagogical emphasis on electrons, rather nuclei, as a foundation for understanding atoms... perhaps miss some opportunities for greater clarity. And that's even before getting to state standards that require teaching both "atoms are conserved in chemical reactions" and "atoms are electrically neutral, so if…

Paper and discussion history. A mention is not an endorsement.

Density Functional Theory studies of cluster states in nuclei — mentioned by mncharity

Wed, 27 Feb 2019 22:18:25 GMT

Not my field, so I'll leave others to answer. But there's also further clumping. In light nuclei, nucleons are clustered as 4alpha particles (two protons and two neutrons). Simulation has ground-state 8Beryllium mass density shaped like a dumbbell of two alphas. And ground-state 20Neon shaped like a 10 femtometer ball-and-stick old wine bottle.[1] With a triangle of alphas (like non-ground-state C), a forth making a tetrahedron (like non-ground-state O), and the fifth hanging further out on the opposite side. Research for an old project. For improving introductory material science in…

Paper and discussion history. A mention is not an endorsement.