Random walk

Ce matin, j'ai vu passer sur les réseaux sociaux un article publié dans Nature intitulé "Laser cooling of antihydrogen atoms". Après avoir étudié l'interaction laser matière depuis 2008, voilà que je réalise qu'on peut tout retourner, dans le sens le...

If there is one thing I cannot deny to be interesting in scientific research, it's about traveling for business. Last years were quite amazing on that side. Here is a small summary. December 2017 - Hamburg, GermanyNovember 2017 - Paris, FranceOctober...

By closing a paper based on dielectric permittivities of metals, I realized how much these optical data are badly known. Despite of the extraordinary efforts of Palik and co-workers to collect all together a large amount of good optical data, it appears...

En réponse à un lien posté vers cette publication. http://www.sciencealert.com/scientists-have-discovered-a-new-state-of-matter-the-jahn-teller-effect Les propriétés d'un matériau peuvent changer de manière dépendante du temps, et il est bien connu que...

On Wednesday 4th of February 2015, I received an email from European Commission approving my Individual Fellowship (IF) within the Marie Sklodowska Curie Actions. As a consequence, I will be funded by Europe for two years to perform advanced numerical...

Dans la littérature scientifique, il est possible de trouver des publications qui expliquent la formation de structures émergentes par la "théorie de l'auto-organisation". Cependant, il y a un problème fondamental à publier de telles évidences dans des...

Prague and its population have a strong link to astronomy and science. It is impossible to miss the thousands of tourists coming each day to the main square of Prague (Staroměstské náměstí) to observe the mysterious and beautiful astronomical clock, exhibiting...

Yesterday, 8pm, we had the pleasure to find out that our new publication with Jörn Bonse (BAM Berlin) has been selected to make the cover of Journal of Applied Physics, Issue 7, Volume 116, journal of the American Institute of Physics (AIP). Screen captures...

The problem At the interface with a slab material, a monochromatic wave experiments a reflection and a refraction as well described by the well-known Snell-Descartes law as follows for air environment \[ \sin \theta_i = n \sin \theta_r, \] where $\theta_i...

Increasing the order of a numerical scheme is important as soon as non-linearities are contained into an Ordinary Differential Equation (ODE) or a Partial Differential Equation (PDE). In this example, I give the recipe to build an eulerian upwind numerical...