20-Mode Universal Quantum Photonic Processor

Caterina Taballione1, Malaquias Correa Anguita2, Michiel de Goede1, Pim Venderbosch1, Ben Kassenberg1, Henk Snijders1, Narasimhan Kannan1, Ward L. Vleeshouwers1,3, Devin Smith1, Jörn P. Epping1, Reinier van der Meer2, Pepijn W. H. Pinkse2, Hans van den Vlekkert1, and Jelmer J. Renema1,2

1QuiX Quantum B.V., 7521 AN Enschede, The Netherlands
2MESA+ Institute for Nanotechnology, University of Twente, 7522 NB Enschede, The Netherlands
3QuSoft, 1098 XG Amsterdam, The Netherlands

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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 $F_{\text{Haar}} = 97.4\%$ and $F_{\text{Perm}} = 99.5\%$ for Haar-random and permutation matrices, respectively, an optical loss of 2.9 dB averaged over all modes, and high-visibility quantum interference with $V_{\text{HOM}}=98\%$. The processor is realized in $\mathrm{Si_3N_4}$ waveguides and is actively cooled by a Peltier element.

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[17] Andreas Fyrillas, Olivier Faure, Nicolas Maring, Jean Senellart, and Nadia Belabas, "Scalable machine learning-assisted clear-box characterization for optimally controlled photonic circuits", arXiv:2310.15349, (2023).

[18] Taira Giordani, Valerio Mannucci, Nicolò Spagnolo, Marco Fumero, Arianna Rampini, Emanuele Rodolà, and Fabio Sciarrino, "Certification of Gaussian Boson Sampling via graphs feature vectors and kernels", Quantum Science and Technology 8 1, 015005 (2023).

[19] Emma Lomonte, Maik Stappers, Linus Krämer, Wolfram H. P. Pernice, and Francesco Lenzini, "Scalable and efficient grating couplers on low-index photonic platforms enabled by cryogenic deep silicon etching", arXiv:2305.00907, (2023).

[20] Francesco Hoch, Taira Giordani, Nicolò Spagnolo, Andrea Crespi, Roberto Osellame, and Fabio Sciarrino, "Characterization of multimode linear optical networks", Advanced Photonics Nexus 2, 016007 (2023).

[21] Kirill A. Buzaverov, Aleksandr S. Baburin, Evgeny V. Sergeev, Sergey S. Avdeev, Evgeniy S. Lotkov, Mihail Andronik, Victoria E. Stukalova, Dmitry A. Baklykov, Ivan V. Dyakonov, Nikolay N. Skryabin, Mikhail Yu. Saygin, Sergey P. Kulik, Ilya A. Ryzhikov, and Ilya A. Rodionov, "Low-loss silicon nitride photonic ICs for single-photon applications", arXiv:2210.15984, (2022).

[22] Zuhra Amiri and Janis Nötzel, "Comparing Latency and Power Consumption: Quantum vs. Classical Preprocessing", arXiv:2311.04053, (2023).

[23] Junyu Zhou, Yuhao Liu, Yunong Shi, Ali Javadi-Abhari, and Gushu Li, "Bosehedral: Compiler Optimization for Bosonic Quantum Computing", arXiv:2402.02279, (2024).

[24] Riccardo Albiero, Ciro Pentangelo, Marco Gardina, Simone Atzeni, Francesco Ceccarelli, and Roberto Osellame, "Toward Higher Integration Density in Femtosecond-Laser-Written Programmable Photonic Circuits", arXiv:2303.05150, (2023).

The above citations are from Crossref's cited-by service (last updated successfully 2024-03-02 17:59:22) and SAO/NASA ADS (last updated successfully 2024-03-02 17:59:23). The list may be incomplete as not all publishers provide suitable and complete citation data.