title: Channeling of Branched Flow in Weakly Scattering Anisotropic Media.
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.
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany.|Institute for Nonlinear Dynamics, Department of Physics, University of Göttingen, 37077 Göttingen, Germany.
authors.forename: Henri
authors.initials: H
authors.lastname: Degueldre
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany.|Institute for Nonlinear Dynamics, Department of Physics, University of Göttingen, 37077 Göttingen, Germany.
authors.forename: Jakob J
authors.initials: JJ
authors.lastname: Metzger
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany.|Institute for Nonlinear Dynamics, Department of Physics, University of Göttingen, 37077 Göttingen, Germany.
authors.forename: Erik
authors.initials: E
authors.lastname: Schultheis
authors.affiliation: Max Planck Institute for Dynamics and Self-Organization (MPIDS), Am Fassberg 17, 37077 Göttingen, Germany.
authors.forename: Ragnar
authors.initials: R
authors.lastname: Fleischmann