Please use this identifier to cite or link to this item: https://doi.org/10.1103/PhysRevA.80.063827
Title: Coherent propagation of waves in dilute random media with weak nonlinearity
Authors: Wellens, T.
Grémaud, B. 
Issue Date: 9-Dec-2009
Citation: Wellens, T., Grémaud, B. (2009-12-09). Coherent propagation of waves in dilute random media with weak nonlinearity. Physical Review A - Atomic, Molecular, and Optical Physics 80 (6) : -. ScholarBank@NUS Repository. https://doi.org/10.1103/PhysRevA.80.063827
Abstract: We develop a diagrammatic theory for transport of waves in dilute disordered media with weak nonlinearity. We first represent the solution of the nonlinear wave equation as a nonlinear Born series. From this, we construct nonlinear ladder and crossed diagrams for the average wave intensity. Then, we sum up the diagrammatic series completely, i.e., nonperturbatively in the strength of the nonlinearity, and thereby obtain integral equations describing both nonlinear diffusive transport and coherent backscattering of the average intensity. As main result, we find that the nonlinearity significantly influences the magnitude of the coherent backscattering effect. Depending on the type of nonlinearity, coherent backscattering is either enhanced or suppressed, as compared to the linear case. © 2009 The American Physical Society.
Source Title: Physical Review A - Atomic, Molecular, and Optical Physics
URI: http://scholarbank.nus.edu.sg/handle/10635/112396
ISSN: 10502947
DOI: 10.1103/PhysRevA.80.063827
Appears in Collections:Staff Publications

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