20-Mode Universal Quantum Photonic Processor
Author:
Taballione Caterina1, Anguita Malaquias Correa2, de Goede Michiel1, Venderbosch Pim1, Kassenberg Ben1, Snijders Henk1, Kannan Narasimhan1, Vleeshouwers Ward L.13, Smith Devin1, Epping Jörn P.1, van der Meer Reinier2, Pinkse Pepijn W. H.2, van den Vlekkert Hans1, Renema Jelmer J.12
Affiliation:
1. QuiX Quantum B.V., 7521 AN Enschede, The Netherlands 2. MESA+ Institute for Nanotechnology, University of Twente, 7522 NB Enschede, The Netherlands 3. QuSoft, 1098 XG Amsterdam, The Netherlands
Abstract
Integrated photonics is an essential technology for optical quantum computing. Universal, phase-stable, reconfigurable multimode interferometers (quantum photonic processors) enable manipulation of photonic quantum states and are one of the main components of photonic quantum computers in various architectures. In this paper, we report the realization of the largest quantum photonic processor to date. The processor enables arbitrary unitary transformations on its 20 input modes with an amplitude fidelity of FHaar=97.4% and FPerm=99.5% for Haar-random and permutation matrices, respectively, an optical loss of 2.9 dB averaged over all modes, and high-visibility quantum interference with VHOM=98%. The processor is realized in Si3N4 waveguides and is actively cooled by a Peltier element.
Funder
Nederlandse Organisatie voor Wetenschappelijk Onderzoek
Publisher
Verein zur Forderung des Open Access Publizierens in den Quantenwissenschaften
Subject
Physics and Astronomy (miscellaneous),Atomic and Molecular Physics, and Optics
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