Please use this identifier to cite or link to this item: http://bura.brunel.ac.uk/handle/2438/15226
Title: Fluctuations in an established transmission in the presence of a complex environment
Authors: Savin, DV
Kuhl, U
Legrand, O
Mortessagne, F
Richter, M
Issue Date: 2017
Citation: Physical Review E, 2017, 96 (3)
Abstract: In various situations where wave transport is preeminent, like in wireless communication, a strong established transmission is present in a complex scattering environment. We develop a novel approach to describe emerging fluctuations, which combines a transmitting channel and a chaotic background in a unified effective Hamiltonian. Modeling such a background by random matrix theory, we derive exact non-perturbative results for both transmission and reflection distributions at arbitrary absorption that is typically present in real systems. Remarkably, in such a complex scattering situation, the transport is governed by only two parameters: an absorption rate and the ratio of the so-called spreading width to the natural width of the transmission line. In particular, we find that the established transmission disappears sharply when this ratio exceeds unity. The approach exemplifies the role of the chaotic background in dephasing the deterministic scattering.
URI: http://bura.brunel.ac.uk/handle/2438/15226
DOI: http://dx.doi.org/10.1103/PhysRevE.96.032221
ISSN: http://arxiv.org/abs/1704.08677v1
http://arxiv.org/abs/1704.08677v1
http://arxiv.org/abs/1704.08677v2
2470-0045
2470-0053
Appears in Collections:Dept of Mathematics Research Papers

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