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Relative entropy and scaling limits of interacting particle systems

We obtain product approximations to the law of particle systems with exclusion and Glauber dynamics in finite volume, by establishing a bound on the relative entropy between the law of the system and ...

Multivariate Reciprocal Inverse Gaussian Distributions: the Surprising Integrals of Supersymmetry

[The abstract contains formulas in latex , please see the Notiziario Settimanale]...

Relative entropy and scaling limits of interacting particle systems (lecture I)

The relative entropy method was developed by H.T. Yau in the 90’s to study the hydrodynamics of the Ginzburg-Landau model, and then adapted to several different dynamics. In this course (2 lectures,...

Tecniche di Percolazione per lo studio di Sistemi Interagenti

Nel seminario saranno presentati alcuni risultati riguardanti i sistemi interagenti ed in particolare il modello di Ising. I modelli interagenti saranno studiati sia dal punto di vista delle misure di...

Absorbing-state phase transition in Activated Random Walk and Oil and Water

We consider two interacting particle systems, Activated Random Walk and Oil and Water, which belong to the so-called class of Abelian networks. In these systems particles of two different types are pr...

Percolation in the Miller-Abrahams random resistor network

The Miller-Abrahams random resistor network is used to study electron transport in amorphous solids. This resistor network is given by the complete random graph built on a marked homogeneous Poisson p...

A self-interacting random walk

In 2011, Benjamini, Kozma and Schapira introduced a “balanced excited random walk” in the 4-dimensional lattice. In 2016, a similar model was studied by Peres, Schapira and Sousi in the 3-dimensio...

Continuous-time Quantum Walks

Quantum analogs of classical random walks have been defined in quantum information theory as a useful concept to implement algorithms. Due to interference effects, statistical properties of quantum wa...

Homogenization of ferromagnetic energies on Poisson Clouds in the plane

We prove that by scaling nearest-neighbour ferromagnetic energies defined on Poisson clouds in the plane we obtain an isotropic perimeter energy with a surface tension characterised by an asymptotic f...

Stochastic homogenization of viscous Hamilton-Jacobi equations with non-convex Hamiltonians: examples and open questions

Homogenization of Hamilton-Jacobi equations with non-convex Hamiltonians in stationary ergodic random media is a largely open problem. In the last 5 years several classes of examples and counter-examp...

Federer, Fleming and all that

The measure theoretic generalization of oriented submanifolds of R^N of any dimension, are currents. One the most important theorem is the compactness criterium of Federer-Fleming. We try to prove and...