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arXiv · 2006.00258

Experimental reconstruction of the few-photon nonlinear scattering matrix from a single quantum dot in a nanophotonic waveguide

Hanna Le Jeannic·Tomás Ramos·Signe F. Simonsen·Tommaso Pregnolato·Zhe Liu·Rüdiger Schott·Andreas D. Wieck·Arne Ludwig·Nir Rotenberg·Juan José García-Ripoll·Peter Lodahl
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Abstract

Coherent photon-emitter interfaces offer a way to mediate efficient nonlinear photon-photon interactions, much needed for quantum information processing. Here we experimentally study the case of a two-level emitter, a quantum dot, coupled to a single optical mode in a nanophotonic waveguide. We carry out few-photon transport experiments and record the statistics of the light to reconstruct the scattering matrix elements of 1- and 2-photon components. This provides direct insight to the complex nonlinear photon interaction that contains rich many-body physics.

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Hanna Le Jeannic, Tomás Ramos, Signe F. Simonsen, Tommaso Pregnolato, Zhe Liu, Rüdiger Schott, Andreas D. Wieck, Arne Ludwig, Nir Rotenberg, Juan José García-Ripoll, Peter Lodahl. 2020-05-30. Experimental reconstruction of the few-photon nonlinear scattering matrix from a single quantum dot in a nanophotonic waveguide. https://doi.org/10.1103/physrevlett.126.023603

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