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The recent discoveries of universal largedeviation properties of nonequilibrium fluctuations constitute major advances in statistical mechanics. These new results relate the counting statistics of currents or fluxes across open systems to nonequilibrium thermodynamics and are the consequences of microreversibility. These largedeviation relationships find their origin in the study of chaotic and fractal properties of dynamical systems sustaining transport processes such as diffusion.
Selected publications Chaos, scattering and statistical mechanics, Escape rate formalism: Transport properties, Lyapunov exponents, and entropy per unit time, Fractality of diffusive modes: Fractal dimensions of the hydrodynamic modes of diffusion, Ab initio derivation of entropy production in diffusive systems: Fractality of the nonequilibrium stationary states of open volumepreseving systems. Entropy production of diffusion in spatially periodic deterministic systems, Fluctuation theorem for currents: Fluctuation theorem for currents in open quantum systems, Nonequilibrium fluctuations, fluctuation theorems, and counting statistics Nonequilibrium work relations: Quantum work relations and response theory, A unified approach to the derivation of work theorems for equilibrium and steadystate, classical and quantum Hamiltonian systems, 
