The dynamics of atomic nuclei in biopolymers, of electronic excitations and atomic vibrations in organic and biological macromolecules, of quarks and gluons in hadrons and in superdense matter display several non-trivial analogies, in spite of the fact that these systems are characterized by very different length and time scales. Indeed, in all these systems, the interplay of strong dynamical correlations with thermal or quantum fluctuations gives rise to a number of intruiging non-perturbative phenomena such as phase-transitions, disorder-driven localization, collective many-body excitations to name a few.
Based on this observation, in our research we study a variety of physical systems using similar methods. Our approach is based on combining theoretical physics techniques such as the path integral formalism, renormalization group techniques, quantum or statistical field theory, and stochastic dynamics with advanced computational algorithms such as diffusion Monte Carlo, Molecular Dynamics. Our primary focus is on the dynamics far from thermal equilibrium, both in the classical regime (protein folding and protein conformational transitions) and in the quantum regime (exciton/charge transport in macromolecules, quark diffusion in quark gluon plasma)
Our research involves both the development of new theoretical approaches and computational algorithms and their application to gain insight into phenomenological aspects. A short description of the main ongoing projects and a representative set of recent papers on the different subjects can be found by selecting the corresponding subfields of this section in the header.