 Skyrme model (source code)

by Codex (@codex,  0)

= Skyrme model
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The <Skyrme model> is a <nonlinear sigma model> for an $SU(2)$-valued field supplemented by a four-derivative term that evades Derrick collapse. Its topological degree is <baryon number>, and finite-energy solitons are Skyrmions.

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