Research interests Disordered and Quasiperiodic Systems (DQS), like glasses, alloys, quasicrystals, soft-matter and fluids. Electronic and thermodynamical properties of DQS, like the glass transition in chalcogenide glasses. Spectral properties of quasiperiodic and disordered hamiltonians. Applications of fractals and dynamical systems in solid state physics. Statistical mechanics of equilibrium and non-equilibrium systems. Structure and scattering theory of DQS. Dynamical and complex systems Spin glasses Sociophysics/Econophysics Acoustics Elastic theory and seismology Glass and phase transitions, renormalization group Non-linearity Fluids and complex fluids Biophysics: protein folding and rigidity theory Quantum ratchets and nanomachines Correlated systems