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- Sapienza University of RomeIT182 papers
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12 papers · 2 filters
Finite-size scaling as a way to probe near-criticality in natural swarms
A. Attanasi, A. Cavagna, L. Del Castello +8
Collective behaviour in biological systems is often accompanied by strong correlations. The question has therefore arisen of whether correlation is amplified by the vicinity to som…
Transport and fluctuation-dissipation relations in asymptotic and pre-asymptotic diffusion across channels with variable section
Giuseppe Forte, Fabio Cecconi, Angelo Vulpiani
We study the asymptotic and pre-asymptotic diffusive properties of Brownian particles in channels whose section varies periodically in space. The effective diffusion coefficient $D…
Localization in one-dimensional chains with Lévy-type disorder
Sepideh S. Zakeri, Stefano Lepri, Diederik S. Wiersma
We study Anderson localization of the classical lattice waves in a chain with mass impurities distributed randomly through a power-law relation with as the dista…
The lifespan method as a tool to study criticality in absorbing-state phase transitions
Angélica S. Mata, Marian Boguñá, Claudio Castellano +1
In a recent work, a new numerical method (the lifespan method) has been introduced to study the critical properties of epidemic processes on complex networks [Phys. Rev. Lett. \tex…
Coherent energy transport in classical nonlinear oscillators: an analogy with the Josephson effect
Simone Borlenghi, Stefano Iubini, Stefano Lepri +3
The standard approach to non-equilibrium thermodynamics describes transport in terms of generalised forces and coupled currents, a typical example being the Fourier law that relate…
General three-state model with biased population replacement: Analytical solution and application to language dynamics
Francesca Colaiori, Claudio Castellano, Christine F. Cuskley +3
Empirical evidence shows that the rate of irregular usage of English verbs exhibits discontinuity as a function of their frequency: the most frequent verbs tend to be totally irreg…