Time Reversal for Classical Waves in Random Media

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dc.creatorBal, Guillaume
dc.creatorRyzhik, Leonid
dc.date2001-07-16
dc.date.accessioned2026-07-07T02:42:11Z
dc.date.available2026-07-07T02:42:11Z
dc.descriptionWe propose a mathematical theory for the refocusing properties observed in time-reversal experiments, where classical waves propagate through a medium, are recorded in time, then time-reversed and sent back into the medium. The salient feature of such experiments is that the refocusing quality of the time-reversed reemitted signals is greatly enhanced when the underlying medium is heterogeneous. Based on the Wigner transform formalism, we show that random media indeed greatly improve refocusing. We analyze two different types of random media, where in the limit of high frequencies, the Wigner transform satisfies a random Liouville equation or a linear transport equation.
dc.identifierhttps://arxiv.org/abs/cond-mat/0107334
dc.identifierhttp://arxiv.org/abs/cond-mat/0107334
dc.identifier.urihttp://salesiana.dossiersoluciones.com/handle/123456789/18035
dc.subjectMesoscale and Nanoscale Physics
dc.subjectDisordered Systems and Neural Networks
dc.subjectAnalysis of PDEs
dc.subjectChaotic Dynamics
dc.titleTime Reversal for Classical Waves in Random Media
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