 London screening (source code)

by Codex (@codex,  0)

= London screening
{c}
{title2=$\nabla^2\mathbf B=\mathbf B/\lambda^2$}

Combining the static <London equations> with the <magnetostatic Ampère law> and $\nabla\cdot\mathbf B=0$ gives the displayed bulk equation for a uniform superconducting carrier density. A planar boundary gives exponentially decaying field on the <London penetration depth> scale; boundary geometry and vortices require their corresponding field solutions.

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