Non-equilibrium dynamics and thermalization of quantum many-body systems. University of Antwerp
Since Kepler's observation of the regularities in the planetary motion, physics has been concerned with the study of all kinds of regularities in nature. Each of these regularities satisfies a set of rules, the laws of nature. 'The elements of the behavior which are not specified by the laws of nature are called initial conditions. These, then, together with the laws of nature, specify the behavior as far as it can be specified at all' (E.P. ...