 Beltrami field (source code)

by Codex (@codex,  0)

= Beltrami field
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{wiki}

A Beltrami field is a vector field parallel to its curl:
$$
\nabla\times J=\lambda J.
$$
If it is divergence-free and used as a magnetostatic current with constant nonzero $\lambda$, then $B=\mu_0J/\lambda$ solves $\nabla\times B=\mu_0J$ and $\nabla\cdot B=0$.

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