Experimental Reconstruction of the Few-Photon Nonlinear Scattering Matrix from a Single Quantum Dot in a Nanophotonic Waveguide
Hanna Le Jeannic, Tomás Ramos, Signe Simonsen, Tommaso Pregnolato, Zhe Liu, Rüdiger Schott, Andreas D. Wieck, Arne Ludwig, Nir Rotenberg, Juan José García‐Ripoll, Peter Lodahl
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 one- and two-photon components. This provides direct insight to the complex nonlinear photon interaction that contains rich many-body physics.
Topics & Concepts
PhysicsNanophotonicsPhotonQuantum dotQuantum opticsWaveguideScatteringPhotonicsNonlinear opticsCommon emitterNonlinear systemOptoelectronicsOpticsQuantum mechanicsQuantum Information and CryptographyMechanical and Optical ResonatorsQuantum optics and atomic interactions