Random walk

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...

While reading scientific publications, most of people, including a large part of the physicists, do not read the equations, since they think they are unable to understand them. However, it is rather easy to understand and then develop a feeling on the...