<html><head><style type='text/css'>p { margin: 0; }</style></head><body><div style='font-family: times new roman,new york,times,serif; font-size: 12pt; color: #000000'>Prezados colegas e alunos,<br><br>Esta mensagem é para divulgar a palestra desta semana do ciclo de Seminários de
Probabilidade e Sistemas <span id="DWT1459" class="ZmSearchResult">Complexos</span>, ICMC-USP & UFSCar, São Carlos. Uma lista com as palestras passadas, e as próximas, pode ser encontrada no seguinte link: http://www.icmc.usp.br/pessoas/pablor/seminar/pcs_seminar.html<br><br>Segue a informação da próxima sexta.<br><h3>Beyond Anderson localization: Anomalous transmission of waves through media with Levy disorder</h3>
<b>Speaker: Jose Antonio Mendez-Bermudez (Instituto de Fisica, Benemerita Universidad Autonoma de Puebla)</b>
<br>
Date: 10/04/2015 • Time: 16h00 • Room: 4-111 (ICMC-USP)<br><br>
<b>Abstract:</b> It is widely known that the presence of disorder leads
to an exponential localization of waves in
one-dimensional random media, as predicted by Anderson. In this work,
however, we provide
experimental evidence that waves can be anomalously localized, in
relation to the standard Anderson localization, by introducing random
configurations of the disorder that follow a distribution with a
power-law tail, i.e., a Levy-type distribution. Using a microwave
waveguide with dielectric slabs
randomly placed, we show that if the spacing between slabs follow a
Levy-type distribution,
unconventional properties in the microwave-transmission fluctuations
appear, revealing the
presence of anomalous localization. Our analytical model describes the
experimental results for
the statics of the transmission fluctuations. Effects of anomalous
localization on the transmission
are compared with those from the standard Anderson localization as well.<br><br>Estão todos convidados! Favor divulgar a possíveis interessados.<br><br>Um abraço,<br><br>Pablo Martín Rodríguez<br>Professor Doutor (MS-3)<br>Department of Applied Mathematics and Statistics, ICMC-USP<br>C.P. 668 - São Carlos, SP, Brazil - CEP 13560-970<span></span><br><br><br><br><br></div></body></html>