Theory and Experiments" was held in Assisi, Italy, on July 4-8, 2007 as a satellite of the"
XXIII IUPAP International Conference on Statistical Physics"(Statphys23), held in Genova,
Italy. This volume contains a series of invited contributions that include essentially all the
different topics covered by the workshop, where the authors of the articles had been invited
lecturers."--P. vii