Eleni Diamanti
  • Interview

From Lab to Startup: Eleni Diamanti on Quantum Technologies and Commercialization

Eleni Diamanti is one of the founders of Welinq, a Paris-based startup set to bring pivotal hardware to quantum computing and communication infrastructures. On the back of a successful pre-seed funding round, the CNRS research director sat down with us to talk about the motivations, ambitions and challenges that meet at the intersection of research and business.

Congratulations on a successful first round of funding. What does it mean for the short-term development of Welinq? What actions will it facilitate?

Thank you! This funding will allow Welinq to accelerate its growth. The enlarged team will work towards the development of the first product and begin preparing the next steps of the roadmap.
What is a quantum memory, and what does it mean for it to be commercialized?

A quantum memory is a device that can store on demand information encoded in properties of quantum states of light, which can then be retrieved for use in a communication or computation task. This function is central to the interconnection and synchronisation of quantum processors. Its industrial development and commercialization is a key element enabling both a modular architecture for quantum processors and a remote access to their capabilities for network users.
What motivated you to take this technology from a lab to a startup?

Performing research in an academic lab is an extremely fulfilling venture leading to wonderful scientific discoveries, like those that led to record high quantum memory performance at LKB1 and multiple demonstrations of quantum advantage for communication and computation tasks at LIP62. In a lab, however, such scientific discoveries often stop at the proof-of-principle stage, where the relevant trade-offs are identified and discussed but not resolved. A startup, with its dedicated technological roadmap pursued by highly qualified collaborators and supported by significant funding, can overcome this stage, pushing the engineering and development to a degree that is incompatible with academic research. Witnessing the advancement of the technology through these stages is very stimulating and can actually have a very positive impact on our research labs.
The groundbreaking technologies developed by Welinq are the result of your work at LIP6, as well as the work of your colleagues over at LKB. How important is collaboration in your field of work?

Collaborative work performed at the interface between the various disciplines involved in quantum technologies (theoretical and experimental physics, computer science, engineering, materials, etc.) is in my view the only way to make real progress in the field, in particular in view of technology commercialization. I have always pursued my research with strong collaborations and I believe it is one of the most fulfilling aspects of our work.
What is your overall ambition for Welinq?

I would like Welinq to become the champion of quantum interconnects for processors and networked devices. I would like it to be an innovative and responsible company, bringing real added value to quantum information processing and communication while also being exemplary and a home to its collaborators.
Alongside Welinq, what excites you most about your current research?

I am always excited about new projects and we are currently working on many in our team, including for example using photonic integration for quantum cryptographic and computing tasks, the demonstration of advanced networking protocols based on multiparty entanglement, and the deployment of a quantum communication testbed in France with both terrestrial and satellite links, allowing for field tests of our developed technologies. There are many challenges associated with these objectives, which makes our days very rich!
In the lead up to International Women’s Day, have you seen a change in the number or representation of women working in your field? Is there a new generation of young women stepping into the domain?

I have observed that the number of junior female colleagues fluctuates quite a bit; I hope that on average it will keep growing. I am very proud to have accompanied in some capacity several young women in the field, and I hope that they will stay! Senior female colleagues are more present in some countries and in some subfields of quantum technologies than in others. In France, we have a rather balanced environment that I appreciate very much. Representation is constantly improving and I am quite optimistic that by raising more and more awareness and debating related issues it will only get better, though it is important to stay alert and keep up our efforts.

1  The Laboratoire Kastler Brossel (LKB), a leading actor in fundamental physics of quantum systems, with a history of 3 Nobel Prizes and 5 CNRS Gold Medals.
2  The Laboratoire d’Informatique de Sorbonne Université (LIP6), a synergetic, multidisciplinary research center and France’s largest laboratory in computer science.

Le théâtre de l’oblitération

Par Élisabeth Angel-Perez

Essai sur la voix photogénique dans le théâtre britannique contemporain


25 000



bachelor degrees


master degrees




Discover our courses catalog


The Faculty of Medicine teaches the 3 cycles of medical studies: from PASS (integrated into the faculty) to the 3rd cycle including DES, DESC, DU and DIU. The lessons are given mainly on two sites: Pitié-Salpêtrière and Saint-Antoine. The faculty also provides paramedical education: speech therapy, psychomotricity and orthoptics. The Saint-Antoine site includes a midwifery school.

Study | at the faculty of medicine

One of our riches is the diversity of students and their backgrounds. Sorbonne University is committed to the success of each of its students and offers them a wide range of training as well as support adapted to their profile and their project.

Associative life

One of our riches is the diversity of students and their backgrounds. Sorbonne University is committed to the success of each of its students.

21 393


17 527



Doctors in medecine and research


Research centers

Welcome to Sorbonne University's Faculty of Science & Engineering

A unique combination of courses and expertise

Our international study programmes are organised according to the major disciplinary areas of the faculty. They represent the graduate study programmes that are not strictly conducted in French or that could be suitable (in part) for non French-speaking students. They also reflect part of the diversity of the disciplines involved and the bi- and inter-disciplinary aspects of many of the courses we offer.


Research & Innovation

We rely on disciplinary skills and on interdisciplinary approaches to renew concepts, methods and research subjects and to focus on some of the crucial issues faced by our societies: transformations affecting the very construction of knowledge (data, AI), the treatment of complex objects (the environment, marine and ocean sciences, cultural heritage) or our contributions to addressing societal challenges (climate change, healthcare).

Study at | The Faculty of Science & Engineering

Our campuses offer different and unique experiences to our students, visitors and staff. Resources and support services are also available to ensure an equal chance at success to all.

Campus Life

In addition to the cultural activities and events organised throughout the year by our clubs and societies, the Parismus society organises numerous events, evenings and cultural visits that will help you discover France and its parisian life.







Sorbonne University's Faculty of Science & Engineering, Oriented towards excellence