Hannover 2016 – scientific programme
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Q: Fachverband Quantenoptik und Photonik
Q 4: Photonics I
Q 4.5: Talk
Monday, February 29, 2016, 12:00–12:15, f342
Characterising linear optical circuits via phaseless estimation techniques — •Daniel Suess1, Richard Kueng1, Chris Sparrow2, Christopher Harold2, Jacques Carolan2, Anthony Laing2, and David Gross1 — 1Institute for Theoretical Physics, University of Cologne, Germany — 2Centre for Quantum Photonics, University of Bristol
Linear-optical circuits may become important elementary building blocks of quantum computers in the future. Especially integrated photonics has the prospect of being scaleable by using technology from chip manufacturing. Here, we present an efficient, robust, and conceptually simple technique for characterising such a chip based on recent advances in low-rank matrix recovery. We also report on a successful experimental implementation using a universal six-mode linear optics chip.