Weak localization

There are many possible scattering paths in a disordered system
Weak localization is due primarily to self-intersecting scattering paths

Weak localization is a physical effect which occurs in disordered electronic systems at very low temperatures. The effect manifests itself as a positive correction to the resistivity of a metal or semiconductor. The name emphasizes the fact that weak localization is a precursor of Anderson localization, which occurs at strong disorder.

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