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2013 | 124 | 6 | 1069-1073
Article title

Scattering of Elastic Waves in a Quasi-One-Dimensional Cavity: Theory and Experiment

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Abstracts
EN
We study the scattering of torsional waves through a quasi-one-dimensional cavity both from the experimental and theoretical points of view. The experiment consists of an elastic rod with square cross-section. In order to form a cavity, a notch at a certain distance of one end of the rod was grooved. To absorb the waves, at the other side of the rod, a wedge, covered by an absorbing foam, was machined. In the theoretical description, the scattering matrix S of the torsional waves was obtained. The distribution of S is given by Poisson's kernel. The theoretical predictions show an excellent agreement with the experimental results. This experiment corresponds, in quantum mechanics, to the scattering by a delta potential, in one dimension, located at a certain distance from an impenetrable wall.
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author
  • Universidad Autónoma Metropolitana-Azcapotzalco, A.P. 21-267, 04000 México D.F., Mexico
  • Universidad Autónoma Metropolitana-Azcapotzalco, A.P. 21-267, 04000 México D.F., Mexico
  • Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, A.P. 55-534, 09340 México D.F., Mexico
  • Departamento de Física, Universidad Autónoma Metropolitana-Iztapalapa, A.P. 55-534, 09340 México D.F., Mexico
  • Instituto de Ciencias Físicas, Universidad Nacional Autónoma de México, A.P. 48-3, 62210 Cuernavaca Mor., Mexico
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Document Type
Publication order reference
Identifiers
YADDA identifier
bwmeta1.element.bwnjournal-article-appv124n655kz
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