PHOTONICS QUANTUM SAMPLING MACHINE

Resultado final

Efficient calibration toolbox for complex reconfigurable interferometers

Calibration of complex reconfigurable circuits represents a progressively demanding task when the size of system increases given the large number of integrated components Different techniques for the characterization of large size integrated systems will be developed and tested in order to provide an efficient toolbox to calibrate and program the operation of the reconfigurable interferometers

Robustness and tolerance to fabrication errors

The sampling protocols we will be implementing will be realized on the noisy intermediate scale NISQ devices we will build Theoretical support for these applications will be provided by simulations and analytical studies to characterize the noise tolerances that are required for different applications The errors arise from photon loss limited fabrication accuracy and limited photon indistinguishability so we will need to investigate how these different sources of error impact the sampling tasks

HQC using sampling from non-linear interferometers

Sampling from the output of linear interferometers in known to be useful for Monte Carlo integration, approximate optimization, and identifying certain properties of graphs. A sufficiently large number of nonlinearities would enable universal quantum computation. We will provide feasibility studies for the quantum advantage that can be obtained from sampling from interferometers with a few nonlinear photon-photon interactions. Two paths will be explored: the equivalence of nonlinear interferometers to larger, linear interferometers with postselection; and the equivalence of nonlinear interferometers to quantum circuits with limited depth (and their computational applications). This will be used to propose and implement computational applications using prototype QOLOSSUS.

Certification of integrated hardware

The validation toolbox developed in MS7 will be the basis of the certification of the assembled integrated hardware. The certification will include accurate and complete calibration of the integrated components, whose result will be at the basis of the capability to program the hardware operation. Then, the toolbox will be employed to verify the correct operation of the device from the main sources of error, including partial photon distinguishability.

Architecture for femtosecond laser-written platform

Report on the definition of the most appropriate architecture for integrated circuits based on the laserwriting technology for manipulation of multiphoton states Peculiar properties of the fabrication technique such as polarization control and threedimensional capabilities will be included in the analysis

Classification of sampling tasks with identification of estimators

Report on the classification of variations of sampling tasks achievable with linear optics and equivalences between them These include Boson Sampling BS Scattershot BS Driven BS Gaussian BS nonlocal BS New schemes will also be described such as sampling with inputs consisting of photon number superpositions We will characterize the enhancement provided by nonlinearities at the fewphoton level via the postselection overhead induced by a linearoptical simulation of the nonlinear process

Secure cloud photonics HQC

SORBONNE UNIV will adapt the algorithms obtained in T7.1, T7.2 and T7.3 via universal blind quantum computing scheme (for masking both data and computation) in order to define the secure version of these algorithms. VERIQLOUD will then develop both the control software layer over the QOLOSSUS and QALCULUS machines as well as the platform for the remote client connecting to these machines, to enable the secure executions of these HQC algorithms.

Commercial advancement

Prototype demonstration at business oriented conferences, internet and media, with aid of key personnel from beneficiaries who are used to interact with industrial partners.

Development and classification of HQC based on non-adaptive linear optics

Report mapping the requirements for initial proof of principle demonstrations of hybrid quantum computation HPC applications suitable for nonadaptive photonic quantum sampling machines Monte Carlo integration MaxHaf approximate optimization identification of dense subgraphs Classification of tasks with the resources necessary for proofofprinciple demonstrations amount and accuracy of squeezing parameter in inputs complexity of the linear interferometer design postselection overhead number of different devices required alternatively the desired level of parameter tunability

HQC with feedback for quantum machine learning

SORBONNE UNIV target to incorporate the outcome from T7.1 and T7.2 into useful applications by utilising generative modelling to train QOLOSSUS and QALCULUS platforms using a finite set of samples drawn from a data set, by learning the underlying probability distribution from which these samples are drawn. The platforms will be trained using a feedback loop to generate new samples from the target distribution itself. The first step is the adaptation of the existing algorithms already developed by SORBONNE UNIV to the QOLOSSUS and QALCULUS architecture followed by performance analysis under the specific noise model for further optimisation. The next step is to is to train QOLOSSUS and QALCULUS platform to produce a specific unitary target using classical data from that target unitary (e.g. classical measurement results from the target circuit in case of quantum compiling application and classical challenge - resposnce outcome in the case of quantum cryptanalysis of classical unitary primitives). Finally the performance of the QOLOSSUS and QALCULUS will be benchmarked against classical setting through the analysis of the quantum query complexity of statistical inference problems to demonstrate quantum advantage.

Non-linearity enhanced sampling processes

Report on the introduction of non-linearities at the few photon level within linear architectures. In particular, the classes of distribution enabled by non-linearities and inaccessible with only linear optical systems will be investigated and classified.

Dissemination of reports

QUIX BV will take advantage of its close contact with national bodies/public agencies and private companies both in Netherlands and Europe to develop an internal market study aimed at defining practical uses cases for the quantum machines developed in the consortium; on the longer term the strategy will focus on the establishment of partnership for the direct use of such machines.

Architecture for silicon nitride platform

Report on the definition of the most appropriate architecture for integrated circuits based on the silicon nitride platform for manipulation of multiphoton states Peculiar properties of the fabrication technique which enables circuits with a large number of integrated passive and active elements will be included in the analysis

Set of stringent validation tests for genuine multiphoton interference

Set of stringent validation tests for genuine multiphoton interference Provide algorithms which determine whether multiphoton interference takes place in the interferometer based on the measured output statistics Losses and imperfection due to fabrication errors will be included in the analysis

Data Management Plan

A structured Data Management Plan will be prepared and will include the best standards for the generated data and assess their suitability for sharing and reuse in accordance with official guidelines

Public website

A dedicated website will be developed both as a mean of public dissemination of the project results to the scientific community the potential investors as well as to the general public It will include public pages with information on the project and its results sections dedicated to It will be regularly updated with project results publications outreach activities deliverables etc

Publicaciones

Calibration of Multiparameter Sensors via Machine Learning at the Single-Photon Level

Autores: Valeria Cimini, Emanuele Polino, Mauro Valeri, Ilaria Gianani, Nicolò Spagnolo, Giacomo Corrielli, Andrea Crespi, Roberto Osellame, Marco Barbieri, Fabio Sciarrino
Publicado en: Physical Review Applied, Edición 15/4, 2021, Página(s) 044003, ISSN 2331-7019
Editor: American Physical Society
DOI: 10.1103/physrevapplied.15.044003

Characterization of multimode linear optical network

Autores: F. Hoch, T. Giordani, N. Spagnolo, A. Crespi, R. Osellame, F. Sciarrino
Publicado en: Advanced Photonics Nexus, Edición 2, 016007, 2023, ISSN 2791-1519
Editor: SPIE Digital Library
DOI: 10.1117/1.apn.2.1.016007

Multi-client distributed blind quantum computation with the Qline architecture

Autores: Beatrice Polacchi, Dominik Leichtle, Leonardo Limongi, Gonzalo Carvacho, Giorgio Milani, Nicolò Spagnolo, Marc Kaplan, Fabio Sciarrino, Elham Kashefi
Publicado en: Nature Communications, Edición 14, 2023, Página(s) 7743, ISSN 2041-1723
Editor: Nature Publishing Group
DOI: 10.1038/s41467-023-43617-0

Spin-orbit maximally discordant mixed states

Autores: D. G. Braga; I. Fonseca; W. F. Balthazar; M. S. Sarandy; J. A. O. Huguenin
Publicado en: Physical Review A, Edición 106, 062403, 2022, ISSN 2469-9934
Editor: American Physical Society
DOI: 10.48550/arxiv.2212.03579

Quantum circuit compilation and hybrid computation using Pauli-based computation

Autores: F. C. R. Peres, E. F. Galvão
Publicado en: Quantum, Edición 7, 1126, 2023, ISSN 2521-327X
Editor: Quantum the open journal for quantum science
DOI: 10.22331/q-2023-10-03-1126

Non-linear Boson Sampling

Autores: N. Spagnolo, D. J. Brod, E. F. Galvão, F. Sciarrino
Publicado en: npj Quantum Information, Edición 9, 3, 2023, ISSN 2056-6387
Editor: Springer Nature Limited
DOI: 10.1038/s41534-023-00676-x

High-fidelity four-photon GHZ states on chip

Autores: Mathias Pont, Giacomo Corrielli, Andreas Fyrillas, Iris Agresti, Gonzalo Carvacho, Nicolas Maring, Pierre-Emmanuel Emeriau, Francesco Ceccarelli, Ricardo Albiero, Paulo Henrique Dias Ferreira, Niccolo Somaschi, Jean Senellart, Isabelle Sagnes, Martina Morassi, Aristide Lemaître, Pascale Senellart, Fabio Sciarrino, Marco Liscidini, Nadia Belabas, Roberto Osellame
Publicado en: npj Quantum Information, Edición 10, 2024, Página(s) 50, ISSN 2056-6387
Editor: Springer Nature
DOI: 10.1038/s41534-024-00830-z

Bright Polarized Single-Photon Source Based on a Linear Dipole

Autores: S. E. Thomas, M. Billard, N. Coste, S. C. Wein, Priya, H. Ollivier, O. Krebs, L. Tazaïrt, A. Harouri, A. Lemaitre, I. Sagnes, C. Anton, L. Lanco, N. Somaschi, J. C. Loredo, P. Senellart
Publicado en: Physical Review Letters, Edición 126/23, 2021, Página(s) 233601, ISSN 0031-9007
Editor: American Physical Society
DOI: 10.1103/physrevlett.126.233601

Micro-opto-mechanical glass interferometer for megahertz modulation of optical signals

Autores: R. Memeo, A. Crespi, and R. Osellame.
Publicado en: Optica, Edición 11, 2024, Página(s) 178-183, ISSN 2334-2536
Editor: Optica Publishing Group
DOI: 10.1364/optica.506669

Experimental multiparameter quantum metrology in adaptive regime

Autores: M. Valeri, V. Cimini, S. Piacentini, F. Ceccarelli, E. Polino, F. Hoch, G. Bizzarri, G. Corrielli, N. Spagnolo, R. Osellame, F. Sciarrino
Publicado en: Physical Review Research, Edición 5, 013138, 2023, ISSN 2643-1564
Editor: American Physical Society
DOI: 10.1103/physrevresearch.5.013138

High-fidelity and polarization-insensitive universal photonic processors fabricated by femtosecond laser writing

Autores: C. Pentangelo, N. Di Giano, S. Piacentini, R. Arpe, F. Ceccarelli, A. Crespi, and R. Osellame
Publicado en: Nanophotonics, Edición 13 (12), 2024, Página(s) 2259-2270, ISSN 2192-8614
Editor: De Gruyter
DOI: 10.1515/nanoph-2023-0636

Measuring relational information between quantum states, and applications

Autores: Michał Oszmaniec, Daniel J Brod, Ernesto F Galvão
Publicado en: New Journal of Physics, Edición 26, 2024, Página(s) 013053, ISSN 1367-2630
Editor: Institute of Physics Publishing
DOI: 10.1088/1367-2630/ad1a27

Quantum advantage in temporally flat measurement-based quantum computation

Autores: Michael de Oliveira, Luís S. Barbosa, Ernesto F. Galvão
Publicado en: Quantum, Edición 8, 2024, Página(s) 1312, ISSN 2521-327X
Editor: Quantum
DOI: 10.22331/q-2024-04-09-1312

Experimental Analysis of Energy Transfers between a Quantum Emitter and Light Fields

Autores: I. Maillette de Buy Wenniger, S. E. Thomas, M. Maffei, S. C. Wein, M. Pont, N. Belabas, S. Prasad, A. Harouri, A. Lemaître, I. Sagnes, N. Somaschi, A. Auffèves, P. Senellart
Publicado en: Physical Review Letters, Edición 131, 2023, Página(s) 260401, ISSN 0031-9007
Editor: American Physical Society
DOI: 10.1103/physrevlett.131.260401

Orbital angular momentum based intra- and interparticle entangled states generated via a quantum dot source

Autores: Alessia Suprano, Danilo Zia, Mathias Pont, Taira Giordani, Giovanni Rodari, Mauro Valeri, Bruno Piccirillo, Gonzalo Carvacho, Nicolò Spagnolo, Pascale Senellart, Lorenzo Marrucci, Fabio Sciarrino
Publicado en: Advanced Photonics, Edición 5, 2024, Página(s) 046008, ISSN 2577-5421
Editor: SPIE Digital Librery
DOI: 10.1117/1.ap.5.4.046008

Efficient validation of Boson Sampling from binned photon-number distributions

Autores: Benoit Seron, Leonardo Novo, Alex Arkhipov, Nicolas J. Cerf
Publicado en: Quantum, Edición 8, 2024, Página(s) 1479, ISSN 2521-327X
Editor: Quantum
DOI: 10.22331/q-2024-09-19-1479

Experimental investigation of Bayesian bounds in multiparameter estimation

Autores: S. E. D’Aurelio, M. Valeri, E. Polino, V. Cimini, M. Barbieri, G. Corrielli, A. Crespi, R. Osellame, F. Sciarrino, N. Spagnolo
Publicado en: Quantum Science and Technology, Edición 7, 025011, 2022, ISSN 2058-9565
Editor: IOP Publishing
DOI: 10.1088/2058-9565/ac5124

Reconfigurable continuously-coupled 3D photonic circuit for Boson Sampling experiments

Autores: F. Hoch, S. Piacentini, T. Giordani, Z.N. Tian, M. Iuliano, C. Esposito, A. Camillini, G. Carvacho, F. Ceccarelli, N. Spagnolo, A. Crespi, F. Sciarrino, R. Osellame
Publicado en: npj Quantum Information, Edición 8, 5, 2022, ISSN 2056-6387
Editor: Springer Nature Limited
DOI: 10.1038/s41534-022-00568-6

Three-Dimensional Electrical Control of the Excitonic Fine Structure for a Quantum Dot in a Cavity

Autores: H. Ollivier, P. Priya, A. Harouri, I. Sagnes, A. Lemaître, O. Krebs, L. Lanco, N. D. Lanzillotti-Kimura, M. Esmann, and P. Senellart
Publicado en: Physical Review Letters, Edición 129, 057401, 2022, ISSN 1079-7114
Editor: American Physical Society
DOI: 10.1103/physrevlett.129.057401

Low-power programmable integrated photonic circuits fabricated by femtosecond laser micromachining

Autores: C. Pentangelo, F. Ceccarelli, S. Piacentini, S. Atzeni, A. Crespi, R. Osellame
Publicado en: Il Nuovo Cimento, Edición 6, 2022, ISSN 1826-9885
Editor: SIF, Bologna
DOI: 10.1393/ncc/i2022-22209-2

Quantifying n-Photon Indistinguishability with a Cyclic Integrated Interferometer

Autores: M. Pont, R. Albiero, S. E. Thomas, N. Spagnolo, F. Ceccarelli, G. Corrielli, A. Brieussel, N. Somaschi, H. Huet, A. Harouri, A. Lemaître, I. Sagnes, N. Belabas, F. Sciarrino, R. Osellame, P. Senellart, A. Crespi
Publicado en: Physical Review X, Edición 12, 031033, 2022, ISSN 2160-3308
Editor: American Physical Society
DOI: 10.1103/physrevx.12.031033

Toward higher integration density in femtosecond-laser-written programmable photonic circuits

Autores: R. Albiero, C. Pentangelo, M. Gardina, S. Atzeni, F. Ceccarelli, R. Osellame
Publicado en: Micromachines, Edición 13(7), 1145, 2022, ISSN 2072-666X
Editor: Multidisciplinary Digital Publishing Institute (MDPI)
DOI: 10.3390/mi13071145

Progress toward practical quantum cryptanalysis by variational quantum cloning

Autores: Brian Coyle; Mina Doosti; Elham Kashefi; Niraj Kumar
Publicado en: Physical Review A, Edición 105, 042604, 2022, ISSN 2469-9934
Editor: American Physical Society
DOI: 10.48550/arxiv.2012.11424

Universal photonic processors fabricated by femtosecond laser writing

Autores: C. Pentangelo, F. Ceccarelli, S. Piacentini, R. Albiero, E. Urbinati, N. Di Giano, S. Atzeni, A. Crespi, and R. Osellame
Publicado en: Proceedings Volume 12004, Integrated Optics: Devices, Materials, and Technologies XXVI, Edición 120040B, 2022
Editor: SPIE.
DOI: 10.1117/12.2608132

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