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arXiv · 2110.04380

Observation of open scattering channels

Reinier van der Meer·Michiel de Goede·Ben Kassenberg·Pim Venderbosch·Henk Snijders·Jorn Epping·Caterina Taballione·Hans van den Vlekkert·Jelmer J. Renema·Pepijn W. H. Pinkse
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Abstract

The existence of fully transmissive eigenchannels ("open channels") in a random scattering medium is a counterintuitive and unresolved prediction of random matrix theory. The smoking gun of such open channels, namely a bimodal distribution of the transmission efficiencies of the scattering channels, has so far eluded experimental observation. We observe an experimental distribution of transmission efficiencies that obeys the predicted bimodal Dorokhov-Mello-Pereyra-Kumar distribution. Thereby we show the existence of open channels in a linear optical scattering system. The characterization of the scattering system is carried out by a quantum-optical readout method. We find that missing a single channel in the measurement already prevents detection of the open channels, illustrating why their observation has proven so elusive until now. Our work confirms a long-standing prediction of random matrix theory underlying wave transport through disordered systems.

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Reinier van der Meer, Michiel de Goede, Ben Kassenberg, Pim Venderbosch, Henk Snijders, Jorn Epping, Caterina Taballione, Hans van den Vlekkert, Jelmer J. Renema, Pepijn W. H. Pinkse. 2021-10-08. Observation of open scattering channels. https://arxiv.org/abs/2110.04380

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