20-Mode Universal Quantum Photonic Processor

Caterina Taballione; Malaquias Correa Anguita; Michiel de Goede; Pim Venderbosch; Ben Kassenberg; Henk Snijders; Narasimhan Kannan; Ward L. Vleeshouwers; Devin Smith; Jörn P. Epping; Reinier van der Meer; Pepijn W. H. Pinkse; Hans van den Vlekkert; Jelmer J. Renema

doi:10.22331/q-2023-08-01-1071

20-Mode Universal Quantum Photonic Processor

Caterina Taballione¹, Malaquias Correa Anguita², Michiel de Goede¹, Pim Venderbosch¹, Ben Kassenberg¹, Henk Snijders¹, Narasimhan Kannan¹, Ward L. Vleeshouwers^1,3, Devin Smith¹, Jörn P. Epping¹, Reinier van der Meer², Pepijn W. H. Pinkse², Hans van den Vlekkert¹, and Jelmer J. Renema^1,2

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

Published:	2023-08-01, volume 7, page 1071
Eprint:	arXiv:2203.01801v5
Doi:	https://doi.org/10.22331/q-2023-08-01-1071
Citation:	Quantum 7, 1071 (2023).

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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 $F_{\text{Haar}} = 97.4\%$ 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.

► BibTeX data

@article{Taballione2023modeuniversal,
  doi = {10.22331/q-2023-08-01-1071},
  url = {https://doi.org/10.22331/q-2023-08-01-1071},
  title = {20-{M}ode {U}niversal {Q}uantum {P}hotonic {P}rocessor},
  author = {Taballione, Caterina and Anguita, Malaquias Correa and de Goede, Michiel and Venderbosch, Pim and Kassenberg, Ben and Snijders, Henk and Kannan, Narasimhan and Vleeshouwers, Ward L. and Smith, Devin and Epping, J{\"{o}}rn P. and van der Meer, Reinier and Pinkse, Pepijn W. H. and van den Vlekkert, Hans and Renema, Jelmer J.},
  journal = {{Quantum}},
  issn = {2521-327X},
  publisher = {{Verein zur F{\"{o}}rderung des Open Access Publizierens in den Quantenwissenschaften}},
  volume = {7},
  pages = {1071},
  month = aug,
  year = {2023}
}

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The above citations are from Crossref's cited-by service (last updated successfully 2026-08-12 22:40:10) and SAO/NASA ADS (last updated successfully 2026-08-12 22:40:17). The list may be incomplete as not all publishers provide suitable and complete citation data.

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