Hannover 2016 – wissenschaftliches Programm
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Q: Fachverband Quantenoptik und Photonik
Q 10: Quantum Optics II
Q 10.6: Vortrag
Montag, 29. Februar 2016, 15:45–16:00, f442
Programming quantum interference in 103 channels in multiple-scattering materials — •Tom A.W. Wolterink, Ravitej Uppu, Georgios Ctistis, Willem L. Vos, Klaus-J. Boller, and Pepijn W.H. Pinkse — MESA+ Institute for Nanotechnology, University of Twente, Enschede, The Netherlands
We demonstrate quantum interference in multiple-scattering materials. Starting with on the order of 103 coupled channels we create the equivalent of a 2×2 linear optical circuit with programmable correlations by adaptive phase modulation of incident wavefronts. This results in fully programmable Hong-Ou-Mandel interference, showing bunching as well as antibunching of output photons. Our results establish multiple-scattering materials as a platform for adaptive high-dimensional quantum interference experiments, as required, e.g., for boson sampling. Moreover, since multiple-scattering materials are excellent physical unclonable functions for use as optical keys in quantum-secure authentication, our results show the feasibility of including optical keys in other quantum-information protocols.