Random path averaging in multiple scattering theory

TL;DR

This paper introduces a novel path averaging method for wave propagation in random scatterer systems, accounting for repeated scatterings and correlations, impacting the understanding of coherent field extinction in diffusive and localized regimes.

Contribution

It presents a new systematic path averaging approach that includes effects of repeated scatterings and correlations in multiple scattering theory.

Findings

Significant influence of new effects on coherent field extinction

Results valid in both diffusive and localized regimes

Enhanced understanding of wave behavior in random media

Abstract

A new method of path averaging for waves propagating in a random dilute system of identical scatterers is developed. The scattering matrix of such a system is calculated. The method systematically takes into account repeating scatterings on the same scatterer and effects of correlations. Results obtained show the significant influence of new effects on the extinction of a coherent field and are valid in both the diffusive and localized regimes.