Skyrmion

Rarity: Common

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Notion

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Science and technology

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What Wikipedia says

In particle theory, the skyrmion () is a topologically stable field configuration of a certain class of non-linear sigma models. The term was first used in 1979 to name a model of the nucleon by proposed in 1961 by Tony Skyrme.

Excerpt from the Wikipedia article “Skyrmion”, under the CC BY-SA 4.0 license. Read the article on Wikipedia

Image: Karin Everschor-Sitte and Matthias Sitte, CC BY-SA 3.0, via Wikimedia Commons.