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1953: Fermi's "little discovery" and the birth of the numerical experiment
Stefano Lepri, Roberto Livi, Stefano Ruffo
The year 1953 is pivotal for computational physics: the first application of the Monte-Carlo method is published and calculations of the so-called Fermi-Pasta-Ulam-Tsingou experime…
Conformal order and Poincar-Klein mapping underlying electrostatics-driven inhomogeneity in tethered membranes
Honghui Sun, Zhenwei Yao
Understanding the organization of matter under the long-range electrostatic force is a fundamental problem in multiple fields. In this work, based on the electrically charged tethe…
Lattice models of random advection and diffusion and their statistics
Stefano Lepri, Paolo Politi, Arkady Pikovsky
We study in detail a one-dimensional lattice model of a continuum, conserved field (mass) that is transferred deterministically between neighbouring random sites. The model falls i…
Non-equilibrium steady states of long-range coupled harmonic chains
Francesco Andreucci, Stefano Lepri, Stefano Ruffo +1
We perform a numerical study of transport properties of a one-dimensional chain with couplings decaying as an inverse power of the intersite distance and open boun…
Large Fluctuations in Amplifying Graphs
Stefano Lepri
We consider a model for chaotic diffusion with amplification on graphs associated with piecewise-linear maps of the interval [S. Lepri, Chaos Solitons & Fractals, 139,110003 (2020)…