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Fundamental Research Division
The DRF at the CEA assemble approximately 6,000 scientists since January 2016.
Theoretical physicists from IPhT have advanced the understanding of non-unitary field theories, in particular by using recent mathematical results relating to "non-semi-simple associative algebras." Their work has potential applications in, among other things, the delocalization transition in the entire quantum Hall effect.
Combining extreme value theory and chaos theory, researchers from LSCE have developed digital tools to determine the quality and rarity of a weather forecast based on atmospheric data collected since 1948. Their near-instantaneous ability to analyze atmospheric circulation could ultimately allow for better prediction of extreme weather events.
For the first time, a team from IRAMIS has produced very intense infrared laser pulses carrying “orbital angular momentum” (optical vortices) and transferred this momentum to XUV harmonics generated on a “plasma mirror.” The applications of these new effects include the acceleration of ultra-short beams of high-energy particles.
Take a very elongated nucleus of strontium-98, remove two protons... and it becomes a sphere. Although this abrupt shape transition, observed for the first time at GANIL, remains unexplained, a deeper understanding of this phenomenon will allow the physicists to know a little more about the complex organization of nucleons in the nucleus.
A team of theoretical physicists has demonstrated that, within the framework of the most “simple” solution of string theory, a close relationship binds the masses of fermions and those of their partner particles; i.e., the supersymmetric bosons. Since supersymmetric bosons are absent in the data collected at the LHC, the newly demonstrated constraint most likely rules out this version of string theory.
Chemists from ICSM have synthesized new hybrid nanostructured materials (mineral and organic), by a molecular self-assembly process in water, at room temperature. This family of materials containing polyoxometalates (POMs) can perform various functions: ion or proton conductor, electrode, photosensitive crystal, catalyst... and more.
Cells have a skeleton of microtubules that can either soften or stiffen, depending on the cell's needs. A team from CEA-BIG and its partners has revealed the relationship between the underlying biochemical and mechanical properties.
A team from the CEA Frédéric-Joliot Institute has developed new optical probes for non-invasive imaging. These chemical tools could lead to the development of diagnostic agents to better characterize the risk of aortic aneurysm.
On Thursday, 2017 May 4, a giant magnet weighing 130 metric tons will leave the assembly plants in Belfort on its journey to the NeuroSpin research facility at the CEA's Paris-Saclay Center (Essonne).
The CEA Frédéric-Joliot Institute is involved in project CARBAMAT to fight against antibiotic resistance. SATT Paris-Saclay, a company promoting technology transfer, supports this project.
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CEA is a French government-funded technological research organisation in four main areas: low-carbon energies, defense and security, information technologies and health technologies. A prominent player in the European Research Area, it is involved in setting up collaborative projects with many partners around the world.