This page lists the activities, programs and networks in which the IRIF participates in quantum computing, as well as the main permanent members involved since January 2023.

In quantum computing, IRIF is mainly recognized for its contributions to the design and analysis of algorithms, the study of computational models, and the foundations of programming languages. In addition, in 2014, IRIF co-founded the Paris Center for Quantum Computing (PCQC) in Paris. This center brings together computer scientists, theoretical and experimental physicists and mathematicians who work in work in and around Paris.

More specifically, two IRIF groups are particularly active in this area of research:

• The Algorithms and complexity group designs quantum algorithms for new applications and establishes their limits.
• The Proofs and programs group builds the theoretical foundations of quantum programming languages.

From the Algorithms and complexity group:

1. Simon Apers
2. Geoffroy Couteau
3. Pierre Fraigniaud
4. Iordanis Kerenidis
5. Sophie Laplante
6. Frédéric Magniez
7. Claire Mathieu
8. Miklos Santha
9. Adrian Vladu

From the Proofs and programs group:

1. Claudia Faggian
2. Paul-André Melliès
3. Michele Pagani
4. Alexis Saurin

The Graduate School of Quantum Technologies trains students through a solid knowledge base in the fields of quantum information and technology. With the developed skills, students will be offered many opportunities in this rapidly expanding field, from the business world to research via doctoral studies.

The CNRS Quantum Technologies research group follows the GdR Quantum Engineering, from Fundamental Aspects to Applications (IQFA) since 2023.

The GdR IQFA, supported by the Institutes of Physics (INP), Sciences of Engineering and Systems (INSIS), and Sciences of INformation and their Interactions (INS2I) of the CNRS, brings together more than 50 participating laboratories. There are therefore a total of more than 70 groups interested in the actions carried out within the framework of this GDR.

The CNRS research group Mathematical Informatics has hosted a Quantum Computing Working Group since 2006. The GT IQ brings together the French computer science community whose work or interests focus on Quantum Computing in general. One of the main missions of the GT IQ is to create a synergy of its community dispersed in 20 laboratories with the aim of strengthening the number of French sites with international recognition on the theme of Quantum Computing.

The Ile-de-France network QuanTiP – Quantum Technologies in Paris Region – led by the CNRS and coordinated by Hélène Perrin, from the Laser Physics Laboratory (LPL – CNRS/Université Sorbonne Paris Nord), has been labeled Major Research and Innovation Area (DIM) by the Île-de-France Region for a period of five years. It brings together in the competitive field of quantum technologies a set of academic groups at the best level in the world and a pool of startups and companies from the Paris region, able to promote the transition between fundamental research and valorization, in order to bring out breakthrough innovations. and new applications and to accelerate the transfer of quantum technologies to industry.

The EPIQ – Quantum Software project focuses on the specification and understanding of the software components necessary for the proper functioning of a quantum processor (compilation, manipulations, optimization, intermediate languages, certification, etc.). It also aims to develop new quantum algorithms in areas such as machine learning, optimization or chemistry, as well as to facilitate the simulation of current machines to better understand their operation.

In particular the IRIF is involved in the axes

• Algorithms: Understanding the advantages as well as the limits of quantum computing, whether through research on quantum complexity or discoveries and improvements in algorithms.
• Languages, formal methods and calculation models for quantum computing: Define the framework in which quantum calculations will be made thanks to the introduction of high-level languages, the comparison of calculation models and the exploitation of their relations to optimize the execution of programs.

Plateforme HPCQS

The project High-Performance Computer and Quantum Simulator hybrid (HPCQS) seeks to integrate and couple two quantum simulators, each capable of controlling more than 100 qubits, with two existing European supercomputers in France and Germany.

By joining efforts with those of academia, research and technology organizations and industry, Europe is developing its technological competitiveness for applications requiring complex simulations and the resolution of optimization problems. The HPCQS project plays a key role in enabling research entities and industries to exploit quantum technologies.

Plateforme HQI

HQI is an integrated initiative. It combines a hybrid computing platform coupling several quantum technologies to GENCI's Joliot Curie supercomputer at the TGCC (CEA), and a research program – academic and industrial, and dissemination of uses.

The HQI initiative aims to serve the needs of French and European academic and industrial researchers, wanting to evaluate free of charge on a public infrastructure the potential of quantum computing for their applications as well as to develop international collaborations to promote open research.