Scientific Calendar Event



Description
Antonio Sclocchi
(Lausanne)


Abstract:
The jamming transition is a zero-temperature phenomenon related to disordered and glassy systems. Its critical behaviour has been characterized in the solution of the hard sphere model in infinite spatial dimensions, corresponding to a mean-field theory. In this talk, we consider soft-spheres with a linear repulsive potential and their mean-field model, i.e. the perceptron. We show that the jamming critical behaviour gets extended from the jamming point to an entire phase. We characterize this self-organized critical and marginally stable phase and we show the emergence of a symmetry in the critical exponents. In the last part of the talk, we will discuss jamming criticality in optimization problems and machine learning.



 
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