Actualités | LIP6 - Équipe QI

Non-locality in communication scenarios: assumptions beyond space-like separation

Tue, 24 Mar 2026 10:00:00 +0000

La soutenance de thèse de Matilde Baroni aura lieu le 30 Mars 2026, à 10h. Amphithéâtre Durand, ba^timent Esclingon, 1er étage, Sorbonne Université, 4 Place Jussieu, Paris 5e.

Résumé

Standard quantum information and quantum foundations have historically focused on Bell non-locality in the simplest setting: bipartite, non-communicating systems. This thesis explores the boundaries of this standard Bell scenario by extending it along three main axes: restricted communication, multipartite settings, and operator-algebraic formulations. To preserve the gap between classical, quantum and ‘supra’-quantum correlations while allowing for information exchange, we investigate communication networks restricted by dimensional, computational (via homomorphic encryption), and operational constraints. In doing so, we develop rigorous analytical frameworks to handle the complex structure of multipartite correlations, focusing on sequential communication models and composable simultaneous purifications. To tackle these challenges, the thesis introduces novel mathematical tools from the operator-algebraic framework, such as a new chain rule for the Radon-Nikodym Theorem. By bridging physics, computer science, and mathematics, this work provides both practical certification techniques for quantum devices and deep structural insights into the nature of physical correlations.

Célébrer les femmes dans le domaine de la physique quantique : lancement d'un répertoire vivant de pionnières

Sun, 08 Mar 2026 00:00:00 +0000

Mise en lumière des chercheuses de notre équipe

A l’occasion de la journée du droit des femmes, le 8 mars, le Quantum Information Center Sorbonne (QICS) lance une initiative pour mettre en lumière les femmes travaillant dans le domaine de la physique quantique, dans les laboratoires de Sorbonne Université. Parmis les profils, retrouvez certaines de nos chercheuses !

Lien vers l’article.

Lien vers le poste LinkedIn.

Phys.Org features Dr.Cica Gustiani and Prof.Elham Kashefi for their work on self-verified quantum computation on real hardware

Thu, 08 Jan 2026 14:35:55 +0100

On-chip cryptographic protocol lets quantum computers self-verify results amid hardware noise

Phys.org highlights recent work by Dr. Cica Gustiani and Prof. Elham Kashefi on a cryptographic protocol enabling quantum computers to self-verify their outputs. Successfully implemented on Quantinuum’s trapped-ion quantum processing unit, this collaboration with the University of Edinburgh’s Quantum Software Lab represents a key step toward trustworthy quantum computation on near-term devices. You can find the article online here.

Extract of the article : Over the past few years, researchers have introduced various verification protocols for quantum computing. Most of these solutions, however, were merely theoretical in nature and not applicable to existing quantum processors. “In simple terms, we tried to make quantum computers prove they’re telling the truth,” said Cica. “We took a cryptographic verification protocol that usually requires communication between two devices and made it work entirely on a single chip. The idea is that even if the hardware is noisy or imperfect, it can still verify its own results through built-in tests and randomness.”

QI days 2025

Fri, 12 Dec 2025 00:00:00 +0000

Les 11 et 12 décembre, nous avons organisé notre meeting annuel ‘QI days’, cette année sur deux jours car notre équipe grandit. Durant des deux jours, chaque membre de l’équipe a pu présenté, seul ou en groupe, un tutoriel sur leur sujet de recherche ou sur un sujet spécifique relié. Merci spécial à Verena et Mounir pour l’organisation. Et merci spécial à Enky, Mounir et Eliott pour la présentation la plus marrante (désolée Marco) ! Après deux jours bien remplis, nous avons bien mérité une soirée à manger et chanter avec un karaoké !

Workshop on Secure Networks of Quantum Sensors

Wed, 10 Dec 2025 00:00:00 +0000

Le workshop intitulé Secure Networks of Quantum Sensors aura lieu du 11 au 13 février 2026, en salle 105 (1er étage), couloir 25-25, LIP6, Sorbonne Université, 4 Place Jussieu, 75005 Paris. Toute les informations sur l’évènement sont disponibles here.

Offre de stage: Étude de la consommation énergétique et optimisation d'une chaîne de traitement pour la Distribution Quantique de Clés à Variables Continues

Thu, 20 Nov 2025 10:00:00 +0200

Information

Sujet complet
Contact : Yoann Piétri Yoann.Pietri@lip6.fr, Adrien Cassagne Adrien.Cassagne@lip6.fr

QI Retreat June 2025

Fri, 06 Jun 2025 12:02:37 +0200

Scope of the Workshop

The workshop is planned to cover the following general topics:

quantum computing
quantum communication (theory and experiment)
security of quantum protocols
foundations of quantum mechanics

Poste de Maître/Maîtresse de conférence en systèmes et réseaux de communication quantique

Fri, 14 Feb 2025 10:45:24 +0100

Informations

Fiche descriptive du poste.

Page officielle du recrutement pour Sorbonne Find ici, N° Emploi 1632 et N° Galaxie 251971 pour notre offre.

Les informations pour la procédure de recrutement se trouvent ici.

Contact

Fabrice Kordon Fabrice.Kordon@lip6.fr

Workshop on Secure Networks of Quantum Sensors

Thu, 19 Dec 2024 00:00:00 +0000

Le workshop intitulé Secure Networks of Quantum Sensors aura lieu du 29 au 31 janvier 2025, en salle 105 (1er étage), couloir 25-25, LIP6, Sorbonne Université, 4 Place Jussieu, 75005 Paris. Toute les informations sur l’évènement sont disponibles ici.

Offre de stage sur les réseaux de communications quantiques

Wed, 23 Oct 2024 23:58:03 +0200

Contacts

Eleni Diamanti Eleni.Diamanti@lip6.fr
Nicolas Laurent-Puig Nicolas.Laurent-Puig@lip6.fr

Workshop on Quantum Information (June 2024)

Mon, 27 May 2024 18:03:24 +0200

Scope of the Workshop

The workshop is planned to cover the following general topics:

quantum computing
quantum communication
security of quantum protocols
foundations of quantum mechanics

Organizers and Contacts

Damian Markham Damian.Markham@lip6.fr
Frédéric Grosshans Frederic.Grosshans@lip6.fr
Gizem Maxim Gizem.Maxim@lip6.fr

Address: LIP6, Sorbonne Université, 4 place Jussieu, 75005 Paris France

Program

The preliminary program can be found below: TBD

Venue

The workshop will be held from 12/6/24 to 14/6/24, at the Chateau de Razay.

Eleni 2024 CNRS silver medal

Fri, 16 Feb 2024 00:00:00 +0000

Congratulations to Eleni Diamanti for her 2024 CNRS silver medal !

More information here.

QSNP Workshop

Fri, 12 Jan 2024 00:00:00 +0000

LIP6/Sorbonne Université organised and hosted in January 2024 the QSNP Workshop called “Quantum meets Classical Cryptography” (WP4 and WP6).

Page of the event here.

QI day 2023

Tue, 05 Dec 2023 00:00:00 +0000

On Dec 5th we organized the annual QI day. During the morning and the afternoon every member of the lab presented in 10 minutes their research project (shoutout to Yoann for the amazing slides). After such a long day, we well deserved a night of food and karaoke (shoutout to Damian and Eleni for the best karaoke performances).

PHOQUSING Paris Workshop 2023

Tue, 28 Nov 2023 00:00:00 +0000

LIP6/Sorbonne Université organised and hosted the PHOQUSING Paris Workshop 2023 in Paris on the last week of November. Three days of interesting talks, insightful discussions and productive brainstorming sessions among ~30 PHOQUSING partners!

It was nice seeing all the members actively participating in the discussions and networking with fellow members.

Page of the event here.

Eleni in Le Monde!

Sat, 18 Nov 2023 00:00:00 +0000

Le Monde dedicated an article to our Eleni Diamanti, with the title ‘Eleni Diamanti, l’accélératrice du quantique’.

The link to the article is here.

Fete De La Science 2023

Thu, 19 Oct 2023 15:47:27 +0200

On the weekend of 14th of October, our laboratory participated in the Fete de la Science 2023, animating a stand in Jussieu.

Our polarisers and the BB84 simulator kit attracted the interest of young and old, and allowed us to explain our research topics in simple terms.

Qia Spring Meeting 2023

Wed, 07 Jun 2023 17:51:42 +0200

LIP6 - Laboratoire d’Informatique Sorbonne Université/CNRS organised and hosted the QIA Spring Meeting 2023 in Paris on the first week of june.

Three days of interesting talks, insightful discussions and productive brainstorming sessions among ~150 QIA members, complemented with a sunny weather and beautiful scenery at Sorbonne University!

It was nice seeing all the members actively participating in the discussions and networking with fellow members.

The poster session on Day 2 was also a good opportunity for young researchers to share their work with their peers.

©Sorbonne-Université-Pierre_Kitmacher

Eleni Diamanti took part in the state visit of President Macron to The Netherlands

Mon, 15 May 2023 17:26:01 +0200

Eleni Diamanti had the honour to participate in the French delegation of President Emmanuel Macron during his visit of his Majesty the King Willem-Alexander in order to exchange on European leadership and sovereignty in quantum.

Workshop on Quantum Information (June 2023)

Mon, 03 Apr 2023 00:00:00 +0000

Scope of the Workshop

The workshop is planned to cover the following general topics:

quantum computing
quantum communication
security of quantum protocols
foundations of quantum mechanics

Program

The preliminary program can be found below:

Organizers and Contacts

Damian Markham Damian.Markham@lip6.fr
Frédéric Grosshans Frederic.Grosshans@lip6.fr
Gizem Maxim Gizem.Maxim@lip6.fr

Address: LIP6, Sorbonne Université, 4 place Jussieu, 75005 Paris France

Venue

The workshop will be held from 14/6/23 to 16/6/23, at the Chateau de Razay.

Sponsors and Partners

This workshop is sponsored by France2030.

The partners are Sorbonne University, CNRS, LIP6, University of Edinburgh.

Workshop on Secure Networks of Quantum Sensors

Thu, 13 Oct 2022 00:00:00 +0000

New Maître de Conférences position

Mon, 24 Jan 2022 00:00:00 +0000

Les Exploratices de l'Infiniment Petit

Thu, 14 Oct 2021 00:00:00 +0000

Eleni Diamanti has been featured in a Le Point article entitled Recherche : les exploratrices de l’infiniment petit.

First Master of Computer Science in Quantum Information

Tue, 09 Feb 2021 00:00:00 +0000

Quantum Information Center Sorbonne (QICS), the Computer Science Master Department, in collaboration with the School of Physics are proud to announce the program of the First Master of Computer Science in Quantum Information.

Les femmes de la quantique que le monde entier nous envie

Thu, 09 Jan 2020 00:00:00 +0000

Elham Kashefi and Eleni Diamanti have been featured in a Le Point article entitled Les femmes de la quantique que le monde entier nous envie.

The First Steps of a Quantum Internet

Mon, 25 Nov 2019 00:00:00 +0000

The QI team and the Quantum Hackathon have been featured in a Le Monde article entitled Les premiers pas d’un internet quantique.

Pan-European Quantum Hackaton

Tue, 05 Nov 2019 00:00:00 +0000

The QI team is organizing the Pan-European Quantum Hackathon in Paris on November 5-6, 2019. The Hackathon is held simultaneously in five connected nodes across Europe. Participants from across all five locations will form teams to take on challenges.

Ready for the Huge Leap ?

Mon, 21 Oct 2019 00:00:00 +0000

Elham Kashefi contributed to the report Quantum Computing: ready for the huge leap ? as a member of the quantum panel at France is AI 2019 conference.

Practical Anonymous Communication in Quantum Networks

Wed, 21 Aug 2019 00:00:00 +0000

The work of Anupama Unnikrishnan, Ian MacFarlane, Richard Yi, [Eleni Diamanti]/fr/people/eleni-diamanti/, [Damian Markham]/fr/people/damian-markham/, and Iordanis Kerenidis, about practical anonymous communication in quantum networks was featured in a Phys.org article.

Contextuality and Computational Advantage in Sciences Et Vie

Wed, 17 Apr 2019 00:00:00 +0000

The work of Shane Mansfield about contextuality and computational advantage was featured in the cover investigation of Science et Vie this month,

Quantum Communication is Really Faster

Sun, 09 Dec 2018 00:00:00 +0000

Niraj Kumar and Eleni Diamanti, along with Iordanis Kerenidis, have been interviewed for a press article entitled Milestone Experiment Proves Quantum Communication Really Is Faster in Quantamagazine.

Keeping Quantum Computers Honest

Mon, 08 Jan 2018 00:00:00 +0000

Elham Kashefi, along with Alexandru Gheorghiu, contributed to the ERCIM News 112 on Keeping Quantum Computers Honest.

Quantum Lego

Sun, 07 Jan 2018 00:00:00 +0000

Damian Markham contributed to the ERCIM News 112 on Quantum Lego.

Quantum Superiority with Coherent States

Mon, 01 Jan 2018 00:00:00 +0000

Congratulations to Eleni Diamanti on being awarded ERC Starting Grant ‘Quantum Superiority with Coherent States’ (QUSCO).

Overview of Verification of Quantum Computation

Wed, 20 Sep 2017 00:00:00 +0000

Elham Kashefi, along with Alexandru Gheorghiu and Theodoros Kapourniotis, give an overview of Verification of Quantum Computation.

Best of Both Worlds

Thu, 05 Jan 2017 00:00:00 +0000

Eleni Diamanti and Elham Kashefi comment on the challenge of secure communication in a connected society.