Les superordinateurs au service de l’astrophysique

Les superordinateurs au service de l’astrophysique

EN BREF Superordinateurs : outils essentiels pour les recherches en astrophysique. Utilisation pour des simulations complexes des phénomènes cosmiques. Collaboration de chercheurs via des supercalculateurs comme Frontera et Jean Zay. Capacités de calcul dépassant les quadrillions d’opérations par seconde. Projets en cours pour créer la plus grande carte 3D de l’univers. Impact sur la compréhension … Read more

Physics and Economics: Modeling and Forecasting

La physique et l’économie : modélisation et prévisions

IN BRIEF Economic Modeling: a crucial process for analyzing economic systems. Conceptualization, formalization, specification, and experimentation are the key stages of modeling. Econophysics: a multidisciplinary approach that uses tools from physics to solve economic problems. Economic simulation allows for observing the functioning of economic phenomena. Mathematical and statistical tools: used in econometrics to analyze data. … Read more

The mathematics behind numerical simulations

Les mathématiques derrière les simulations numériques

IN BRIEF Numerical simulations: computational processes on a computer to model physical realities. Mathematical modeling: construction of models to represent complex systems. Mathematical analysis: evaluation and interpretation of the results of simulations. Practical applications: use in various fields, including pandemic and engineering. Technological evolution: computing transforms and enhances the approach to applied mathematics. Numerical models: … Read more

Sociophysics: modeling human behaviors

La sociophysique : modélisation des comportements humains

IN BRIEF Sociophysics: Study of human crowd behavior using mathematical tools inspired by physics. Analysis of theories of human behavior and social configuration. Exploration of ways to predict unpredictable social events. Inquiry into individual versus collective modeling in human behavior. Emerging subfield: cognitive neuroscience and its impact on understanding behavior. Study of human reactions in … Read more

The role of numerical simulations in modern physics

Le rôle des simulations numériques en physique moderne

IN BRIEF Numerical simulation: Modern method of modeling on computer. Facilitates the understanding and prediction of real phenomena. Reduction of physical prototypes, leading to savings in time and money. Supports the analysis of experimental results. Broker for scenarios that are impossible to realize physically. Used in materials science and plasma physics. New challenges for simulation … Read more