Mesoscopic wave physics in fish shoals

Ultrasound scattered by a dense shoal of fish undergoes mesoscopic interference, as is typical of low-temperature electrical transport in metals or light scattering in colloidal suspensions. Through large-scale measurements in open sea, we show a set of striking deviations from classical wave diffus...

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Bibliographic Details
Main Authors: Benoit Tallon, Philippe Roux, Guillaume Matte, Jean Guillard, Sergey E. Skipetrov
Format: Article
Language:English
Published: AIP Publishing LLC 2020-05-01
Series:AIP Advances
Online Access:http://dx.doi.org/10.1063/5.0005145
Description
Summary:Ultrasound scattered by a dense shoal of fish undergoes mesoscopic interference, as is typical of low-temperature electrical transport in metals or light scattering in colloidal suspensions. Through large-scale measurements in open sea, we show a set of striking deviations from classical wave diffusion, making fish shoals good candidates to study mesoscopic wave phenomena. The very good agreement with theories enlightens the role of fish structure in such a strong scattering regime that features slow energy transport and brings acoustic waves close to the Anderson localization transition.
ISSN:2158-3226