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Channeling of branched flow in weakly scattering anisotropic media

Authors

  • H. Degueldre
  • J.J. Metzger
  • E. Schultheis
  • R. Fleischmann

Journal

  • Physical Review Letters

Citation

  • Phys Rev Lett 118 (2): 024301

Abstract

  • When waves propagate through weakly scattering but correlated, disordered environments they are randomly focused into pronounced branchlike structures, a phenomenon referred to as branched flow, which has been studied in a wide range of isotropic random media. In many natural environments, however, the fluctuations of the random medium typically show pronounced anisotropies. A prominent example is the focusing of tsunami waves by the anisotropic structure of the ocean floor topography. We study the influence of anisotropy on such natural focusing events and find a strong and nonintuitive dependence on the propagation angle which we explain by semiclassical theory.


DOI

doi:10.1103/PhysRevLett.118.024301