Permanent members

Romain Alléaume

Romain Alléaume graduated from ENS Paris in 2002 and from Télécom Paris in 2004. He completed his PhD, from Paris VI University in 2004 and was co-recipient of “magazine La Recherche” scientific prize. He then joined Telecom Paris and coordinated the activity on QKD performed within the European FP6 project SECOQC. Romain Alléaume co-founded the start-up company SeQureNet that developed, and successfully commercialized the first continuous-variable quantum key distribution (CV-QKD) system in 2013. Currently he is actively involved in the European Quantum Technology Flagship (OpenQKD, Quantum Secure Network Partnership), the EuroQCI program (ParisRegionQCI, FranceQCI) as well as in French PEPR Quantique (QCommTestbed). He is leading a research activity on quantum and classical cryptography, quantum networks and photonic quantum information processing as well as on cross-disciplinary topics linking quantum information with cryptography, photonics and security.


Cambyse Rouzé
Inria Starting Faculty Researcher

Cambyse Rouzé’s research is focused on the mathematical analysis of complex quantum systems and their use for quantum information processing. His area of expertise includes quantum information theory with discrete and continuous variable systems, entropic inequalities, quantum spin systems at finite temperature and dissipative dynamics. More recently, he has been interested in questions related to the thermal stability of quantum memories and the complexity of quantum many body states. He received his PhD in 2019 from the Department of Pure Mathematics and Mathematical Statistics at the University of Cambridge, UK, under the supervision of Nilanjana Datta. He was then a Humboldt postdoctoral fellow at the Technical University of Munich in the group of Robert König where he won a grant from the Munich Center for Quantum Science and Technology as a junior group leader. Starting from September 2023, he will begin a Starting Faculty Position at Inria Saclay in the Quriosity team.


Peter Brown
Associate Professor

Peter received his PhD in 2019 from the Department of Mathematics at the University of York, UK, under the supervision of Roger Colbeck, for which he has been awarded the Anand Ramachandran Memorial Prize for the best PhD thesis. He was then a postdoctoral researcher at Inria, ENS de Lyon in the group of Omar Fawzi and in 2021 he joined the IQA group as an assistant professor. His research mainly focuses on the theoretical development of quantum cryptographic protocols (in particular those of a device-independent nature) and is interested in the application of convex optimization techniques to quantum information in general.


Group members

Thomas Van Himbeeck

Thomas previously received his PhD from the University of Brussels in 2019, under the supervision of Stefano Pironio. He then moved to Canada, where he was a postdoctoral researcher in the groups of Norbert Lütkenhaus (University of Waterloo) and Hoi-Kwong Lo (University of Toronto). He is interested in all aspects of Quantum Cryptography; from the design of practical implementations using Quantum Optics, to advanced security methods for proving finite-size security. He is interested in both numerical and analytical methods, and has experience with different adversarial models, from Device-Dependent to (semi-)Device-Independent security.


Francesco Mazzoncini
PhD student

I graduated in theoretical physics at the University of Pisa in 2019. I joined the IQA group in 2019 and I am currently working on Quantum Communication Complexity, Cryptography and Multimode Quantum Optics, under the joint supervision of Romain Alléaume and Sylvain Gigan at ENS Paris. I did my Master thesis at Scuola Normale Superiore on Quantum Batteries, more specifically on optimal methods for charging Quantum Batteries in finite time. Besides physics, I also love playing tennis and I am passionate about photography. I am still figuring out how my camera works, but I am really enjoying it.


Guillaume Ricard
PhD student

Guillaume is currently working on quantum coherent communications and digital processing, under the co-supervision of Romain Alléaume and Yves Jaouen, and in collaboration with Quandela, with a PhD grant co-funded by the the Paris Region PhD program.


Marco Andersohn
PhD student

Marco’s research focuses on the application of CV-QKD in the context of telecom networks. His PhD is funded by Orange Labs under the co-supervision of Paulette Gavignet and Nicolas Brochier and by Télécom Paris under the co-supervision of Yves Jaouen and Romain Alléaume. For his Master thesis, he built a polarisation alignment unit for a DV-QKD satellite downlink. My favourite sports are playing tennis, going sailing, diving and climbing.

Tristan Nemoz
PhD student

I graduated in Computer Science from Imperial College London in 2020 and from Télécom Paris in 2021. My research focuses on computational models in quantum cryptography. In particular, I’m interested in trying to remove some classical required hypotheses of cryptography schemes to replace them with more fundamental assumptions.


Yuan Yao
PhD student

Yuan received an Engineering diploma from IMT Atlantique in 2019. Yuan is a last-year Ph.D. candidate under the supervision of Filippo Miatto and Isabelle Zaquine. She works on the automated design of photonic quantum circuits.


Past members

  • Filippo Miatto (Associate Professor)   --   Now a Quantum Computing researcher at Xanadu.
  • Ravi Raghunathan (Postdoc)   --   Now a Collegiate Associate Professor at Viginia Tech Research Center.
  • Martin Cordier (PhD student)   --   Now a postdoc at Humboldt-Universität zu Berlin.
  • Nilesh Vyas (PhD student)   --   Now Engineer at Airbus Defense and Space.
  • Raphaël Aymeric (PhD student)   --   Now Engineer at Thales Alenia Space, Toulouse
  • Richard Wolf (Master student)   --   Now a research fellow at the Irish Centre for High-End computing
  • Hamza Jnane (Intern)   --   Now PhD Student in Quantum Computing at Oxford