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- Sapienza University of RomeIT58 papers
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33 papers · 1 filter
Slow crack propagation through a disordered medium: Critical transition and dissipation
G. Pontuale, F. Colaiori, A. Petri
We show that the intermittent and self-similar fluctuations displayed by a slow crack during the propagation in a heterogeneous medium can be quantitatively described by an extensi…
Evolution of isolated overdensities as a control on cosmological N body simulations
Michael Joyce, Francesco Sylos Labini
Beyond convergence studies and comparison of different codes, there are essentially no controls on the accuracy in the non-linear regime of cosmological N body simulations, even in…
Universal properties of violently relaxed gravitational structures
Francesco Sylos Labini
We study the collapse and virialization of an isolated spherical cloud of self-gravitating particles initially at rest and characterised by a power-law density profile, with expone…
Electric field screening in atomically thin layers of MoS2: the role of interlayer coupling
Andres Castellanos-Gomez, Emmanuele Cappelluti, Rafael Roldán +3
The aim of this work is to study the electrostatic screening by single and few-layer MoS2 sheets by means of electrostatic force microscopy in combination with a non-linear Thomas-…
Brownian ratchet in a thermal bath driven by Coulomb friction
A. Gnoli, A. Petri, F. Dalton +4
The rectification of unbiased fluctuations, also known as the ratchet effect, is normally obtained under statistical non-equilibrium conditions. Here we propose a new ratchet mecha…
The prediction of future from the past: an old problem from a modern perspective
F. Cecconi, M. Cencini, M Falcioni +1
The idea of predicting the future from the knowledge of the past is quite natural when dealing with systems whose equations of motion are not known. Such a long-standing issue is r…