Universality, Dimensional Reduction, and Supersymmetry in the Random-Field Ising Model

by Nikolaos Fytas (Coventry University, UK)

Wednesday 18 Mar 2020, 16:00 → 18:00 Europe/Rome

Aula Conversi (Dipartimento di Fisica - Ed. G. Marconi)

In theoretical physics, the behaviour of a strongly disordered

system cannot be inferred from its clean, homogeneous counterpart. In fact,

disordered systems are prototypical examples of complex entities in many

aspects, mainly in the rough free-energy landscape profile. In the current

talk, I will present new results that shed light upon some of the most

fundamental questions in the theory of critical phenomena of disordered

systems that have created a lot of ambiguity over the last 40 years. The

platform will be the random-field Ising model, which is unique among other

models due to the existence of very fast algorithms that make the study of

these questions numerically feasible and whose applications in hard and soft

condensed matter physics are numerous.