Article Dans Une Revue Physical Review Letters Année : 2019

Intensity of waves inside a strongly disordered medium

Résumé

Anderson localization does not lead to an exponential decay of intensity of an incident wave with the depth inside a strongly disordered three-dimensional medium. Instead, the average intensity is roughly constant in the first half of a disordered slab, sharply drops in a narrow region in the middle of the sample, and then remains low in the second half of the sample. A universal, scale-free spatial distribution of average intensity is found at mobility edges where the intensity exhibits strong sample-to-sample fluctuations. Our numerical simulations allow us to discriminate between two competing local diffusion theories of Anderson localization and to pinpoint a deficiency of the self-consistent theory.

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hal-02311173 , version 1 (12-07-2022)

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Sergey E Skipetrov, Igor M Sokolov. Intensity of waves inside a strongly disordered medium. Physical Review Letters, 2019, 123 (23), pp.233903. ⟨10.1103/PhysRevLett.123.233903⟩. ⟨hal-02311173⟩

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