dc.creator | Lamagna, Federico Agustín | |
dc.creator | Calzetta, Esteban Adolfo | |
dc.date.accessioned | 2018-08-31T15:26:26Z | |
dc.date.accessioned | 2018-11-06T13:05:59Z | |
dc.date.available | 2018-08-31T15:26:26Z | |
dc.date.available | 2018-11-06T13:05:59Z | |
dc.date.created | 2018-08-31T15:26:26Z | |
dc.date.issued | 2017-07 | |
dc.identifier | Lamagna, Federico Agustín; Calzetta, Esteban Adolfo; A functional renormalization method for wave propagation in random media; IOP Publishing; Journal of Physics A: Mathematical and Theoretical; 50; 31; 7-2017 | |
dc.identifier | 1751-8113 | |
dc.identifier | http://hdl.handle.net/11336/57880 | |
dc.identifier | CONICET Digital | |
dc.identifier | CONICET | |
dc.identifier.uri | http://repositorioslatinoamericanos.uchile.cl/handle/2250/1872718 | |
dc.description.abstract | We develop the exact renormalization group approach as a way to evaluate the effective speed of the propagation of a scalar wave in a medium with random inhomogeneities. We use the Martin-Siggia-Rose formalism to translate the problem into a non equilibrium field theory one, and then consider a sequence of models with a progressively lower infrared cutoff; in the limit where the cutoff is removed we recover the problem of interest. As a test of the formalism, we compute the effective dielectric constant of an homogeneous medium interspersed with randomly located, interpenetrating bubbles. A simple approximation to the renormalization group equations turns out to be equivalent to a self-consistent two-loops evaluation of the effective dielectric constant. | |
dc.language | eng | |
dc.publisher | IOP Publishing | |
dc.relation | info:eu-repo/semantics/altIdentifier/doi/https://dx.doi.org/10.1088/1751-8121/aa77dd | |
dc.relation | info:eu-repo/semantics/altIdentifier/url/http://iopscience.iop.org/article/10.1088/1751-8121/aa77dd/meta | |
dc.rights | https://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | |
dc.rights | info:eu-repo/semantics/restrictedAccess | |
dc.subject | FIELD THEORY METHODS | |
dc.subject | RANDOM MEDIA | |
dc.subject | WAVES | |
dc.title | A functional renormalization method for wave propagation in random media | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |
dc.type | Artículos de revistas | |