[PICTURES RETURN] First solemn ceremony to award the Académie des Sciences prizes

Directeur de recherche émérite at CNRS, he spent his entire career at the ENS Physics Laboratory after a postdoctoral stay at IBM Yorktown Heights.

He has developed an effective theory of electronic states in semiconductor heterostructures, which has elucidated the effects of the reduced dimensionality of electronic motion on energy levels and carrier relaxation, notably in semiconductor quantum boxes.

Professor at Sorbonne Université, Laboratoire Jacques-Louis Lions, which he directed from 2001 to 2012.

His research focuses on mathematical modeling, methods and algorithms for scientific computing on parallel and quantum architectures, and complexity reduction techniques. The ERC Synergy EMC2 project in computational chemistry, the Centre d'été mathématique de recherche avancée en calcul scientifique (Cemracs), the Institut Carnot Smiles and the Groupement d'intérêt scientifique Obépine that he co-founded illustrate the interdisciplinary framework of his research.

Nicole El Karoui is Professor Emeritus at Sorbonne Université, Laboratoire de probabilités, statistique et modélisation.
She is passionate about the study of random phenomena that evolve over time, first in purely theoretical aspects and then in aspects closer to applications and optimization. Stochastic differential equations illustrate this link with applications, either in the modeling of physical phenomena, or in that of financial prices. The echo of his work, mainly carried out at the École polytechnique, has been reinforced by his many students in the Probability and Finance master's program, who have enjoyed brilliant professional success in the field of financial derivatives. 
 

Rodolphe Le Targat is a researcher at the Laboratoire National de Métrologie et d'Essais, Laboratoire Temps-Espace
Thanks to his Roymage project, he is developing transportable atomic clocks based on quantum mechanics. They are capable of detecting minimal deformations of space-time, with a resolution of 18 digits. Using these instruments, he studied chronometric geodesy, the science of measuring the shape of the Earth using clock data. His research thus lies at the intersection of fundamental physics and civil applications. 
 

Hubert Saleur is a researcher at the Institute of Theoretical Physics at CEA Saclay and Professor of Physics at the University of Southern California (USC) in Los Angeles.
He studies physical problems in regimes of very strong interactions or out of equilibrium, exploiting the mathematical structures (such as generalized symmetries) of quantum field theory. His work includes critical phenomena, quantum electronics, mesoscopic systems and statistical geometry. 
 

Clémence Queffélec is a senior lecturer at Nantes University's Ceisam laboratory.
She is interested in processes for upgrading biomass and agri-food and industrial waste into alternative materials, notably for applications in road asphalt. It also explores the use of light as an energy source to activate ambitious chemical reactions. 


 

Bernard Dieny is Director of Research at CEA's Spintronics and Component Technologies Laboratory.
He has been conducting research in magnetism for 40 years. Founder of the SPINTEC laboratory in Grenoble, he studies the fundamental aspects of spin electronics and its applications for magnetic recording and ultra-low-power electronics. He is also exploring the magnetism-biology interface for innovative treatments of cancer and diabetes. 
 

Jonathan Cormier is a professor at the École nationale supérieure de mécanique et d'aérotechnique, Institut Pprime: Physics and engineering in materials, mechanics and energy. 
He is particularly interested in the mechanical behavior and durability of high-temperature materials for aeronautical turbines, whether nickel-based superalloys or ceramic matrix composites, as well as their coatings. His work helps to improve the reliability of aeronautical turbines and reduce their environmental footprint. 

 

Casimir de Lavergne is a CNRS researcher ,Laboratoire Locean of the Institut Pierre-Simon Laplace.
He is interested in deep ocean movements and their impact on climate. His research has revealed the structure and drivers of deep ocean currents. He has also developed theoretical and numerical models of vertical transport in the ocean, which are now helping to elucidate the interactions between climate and the deep ocean. 

 

Yilin Wang is a professor at the Swiss Federal Institute of Technology in Zurich, Switzerland.
Yilin Wang explores the connections between random geometry, hyperbolic geometry and Teichmüller theory. Her introduction of Loewner energy reveals an unexpected connection between random curves called SLEs, the geometry of universal Teichmüller space, and renormalized volumes of hyperbolic varieties in dimension 3. She also discovered new identities concerning the lengths of hyperbolic geodesics on surfaces using probabilistic tools.



 

Guy Bouchitté is Professor Emeritus at the University of Toulon's IMATH laboratory, which he co-created in 2006.
Guy Bouchitté, in the tradition of the J.L. Lions school, stands out for his applied approach to calculus of variations. His pioneering work in continuum mechanics and electromagnetic optics has had a major impact, particularly on the multiscale analysis of metamaterials and the optimization of structures. His recent research on optimal transport has established novel links between engineering, fundamental mathematical analysis and probability. 
 

Édouard Bonnet is a CNRS researcher, Laboratoire de l'informatique du parallélisme at ENS Lyon.
He studies how to take advantage of the structure of the graphs or networks that model most real systems, to solve classical combinatorial problems there more efficiently. In 2020, he and his colleagues introduced a graph parameter called "twin-width". This opens the way to new algorithms, and unifies and generalizes many known results. 

 

Nicolas Blanchard is CNRS research director and head of the Laboratory for Molecular Innovation and Applications (LIMA, Université de Haute-Alsace-Université de Strasbourg-CNRS).
His team develops methods for creating complex molecules, including biologically active natural products, from simple, low-cost building blocks. Different strategies are investigated, involving skeletal reorganizations or coupling reactions of different fragments.


 

Michèle Wigger is a professor at Télécom Paris, Institut polytechnique de Paris, Laboratoire traitement et communication de l'information.
She works in information theory, with the aim of characterizing fundamental performance limits and designing efficient algorithms to achieve them in distributed systems such as sensor networks, distributed computing and storage, as well as communications in emerging standards. 


 

Charles-Édouard Bréhier is a professor at the Université de Pau et des Pays de l'Adour, Laboratoire de mathématiques et de leurs applications de Pau (LMAP). 
He studies numerical methods for stochastic differential and partial differential equations. With his collaborators, his work aims to build, analyze and test innovative algorithms for faithfully simulating these random systems. He has also worked on the simulation of rare events. He is also interested in applications of stochastic models in physics. 


 

Jeanne Crassous is CNRS Research Director, Rennes Institute of Chemical Sciences.
She explores chiral molecules (molecules with non-superimposable mirror images), from their preparation (helicenes, chiral organometallic complexes), to their photophysical and chiroptical properties (absorption and emission of polarized light), for the understanding of fundamental (parity violation, spin effects) and applied (polarized light-emitting diodes) processes. 

 

Pierre-Olivier Lagage is CEA Research Director, Astrophysics Department, Astrophysics, Instrumentation and Modeling Laboratory.
After a theoretical thesis on cosmic ray acceleration, he specialized in infrared observations of the cosmos. He is the French scientific leader for the development of several innovative instruments for telescopes on the ground or in space, and in particular for the Miri instrument on the JWST, with which he studies the atmosphere of exoplanets. 
 

Catherine Ritz is a CNRS research director at the Institut des Géosciences de l'Environnement.
As a glaciologist, she uses numerical models to study the response of the Antarctic and Greenland ice caps to past and future climate variations. She has also contributed to the dating of ice cores and the selection of the Antarctic drilling site that yielded a climate record over 1.5 million years old. 

 

Eric Guilyardi is CNRS Research Director, Laboratory of Oceanography and Climate: Experiments and Numerical Approaches at the Institut Pierre-Simon Laplace, and Professor at Reading University (UK).
He is an oceanographer and specialist in the role of the ocean in a changing climate. He was lead author of the 5th IPCC report and contributed to the 6th. He chairs the Office for Climate Education, under the aegis of Unesco, which supports teachers in climate change education. He is also a member of the Conseil Scientifique de l'Éducation Nationale and sits on the CNRS Ethics Committee. 
 

Emilie Capron is a CNRS researcher at the Institut des géosciences de l'environnement.
She reconstructs past climate evolution based on the analysis of polar ice cores. As part of her Mopga Hotclim project (2020-2026), she is studying variations in climate and the carbon cycle during periods marked by polar warming close to that expected by 2100. Its results serve as test beds for evaluating the models used to make climate projections for the future. 

 

Dominique Bockelée-Morvan is CNRS Research Director, Laboratoire d'instrumentation et de recherche en astrophysique (Lira), Observatoire de Paris.
She specializes in comets, which she observes using millimeter and infrared spectroscopy from the ground or space. Her work has led to the identification of numerous molecules present in the ices of their nuclei, with major implications for our understanding of the history of the Solar System. She has been heavily involved in ESA's Rosetta mission. She recently discovered CO2 in the exosphere of Ganymede with the JWST. 



 

Lecturer at the Muséum national d'Histoire naturelle and head of the "Systématique, Évolution et Paléontologie" master's degree program, Ronan Allain is interested in the study of the diversification and evolution of theropod dinosaurs and large sauropods. 
He has been involved in the discovery of numerous specimens in France, Laos, Morocco and Lesotho. Since 2010, he has been coordinating scientific activity and excavations at the exceptional Angeac-Charente site, which has yielded the remains of a complete 140-million-year-old ecosystem 



 

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Luc Aquilina is a professor at the University of Rennes, Observatoire des sciences de l'environnement de Rennes, Géosciences de Rennes.

With his team, he sets out to make the invisible waters of the subsoil visible. He studies their chemical and microbiological composition, their circulation and their exchanges with rivers. He has set up the Groundwater Dating Laboratory and is working with local authorities to model the impact of climate change on water resources.




 

✨ Maheva Andriatsilavo is a post-doctoral fellow at the Brain Institute in Paris. She is interested in the formation of the brain, composed of a large number of neurons organized into functional circuits. Each neuron has distinct characteristics - morphological, molecular or functional.
Using the Drosophila fly as a model, she studies how a neuron acquires its specific identity and how this neuronal diversity is established over time.

✨ Carole Duchêne, is a post-doctoral fellow at the Max Planck Institute for Biology Tübingen, (Germany).
After completing a thesis in Paris on light perception by marine microalgae, she is now focusing on the interactions between brown algae and the viruses that infect them. Using modern tools such as genomics and Crispr-Cas9, she is studying the coupling between the life cycle of these viruses and the alga's sexual reproductive cycle.

✨ Ziqiang Patrick Li
Ziqiang Patrick Li is a post-doctoral fellow at the Institute of Science and Technology Austria (ISTA).
He studies how plant cells divide and connect with each other. His research focuses on nanoscopic structures called plasmodesms, which enable direct communication between plant cells and are formed during a particular type of cell division.

✨ Andreas Schoenit
Andreas Schoenit is a PhD student in biophysics at the Institut Jacques Monod (CNRS/Université Paris Cité) with Benoit Ladoux and René-Marc Mège.
He is interested in the role of mechanical forces in the construction and maintenance of epithelial tissues. These forces, like pressure, influence tissue formation. Once formed, quality control mechanisms ensure their proper functioning by eliminating non-functional, diseased or infected cells.

✨ Florian Wernert
Florian Wernert is a research engineer at Aix-Marseille Université, Institut des Neurosciences de la Timone. 
His work focuses on the development of new photonic, genetic and electronic methods to promote directed axonal regrowth and the formation of new synapses after injury. He is developing them on a cellular model in an "organ-on-a-chip" device before validating them in live animals, with the aim of their therapeutic application in humans.

✨ Marlène Vayssières
Marlène Vayssières is an Inserm researcher in the Therapeutic Targets and Drug Design laboratory.
Marlène Vayssières, a structural biology researcher, studies the biogenesis of ribosomes, the "protein factories" of cells, whose functioning is often deregulated in cancer. Her work aims to identify molecules capable of blocking this process and analyze their cellular effects, in order to pave the way for new anti-cancer therapeutic approaches.

✨ Satish Babu Moparthi
Post-doctoral fellow at the Myology Research Center (Sorbonne University / Inserm), he studies how autophagy and endocytosis, two cellular recycling systems, enable muscle to adapt to situations such as exercise or fasting. His research aims to understand how these mechanisms are disrupted in rare diseases like