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- Sapienza University of RomeIT103 papers
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24 papers · 1 filter
Formation of satellites from cold collapse
David Benhaiem, Francesco Sylos Labini
We study the collapse of an isolated, initially cold, irregular (but almost spherical) and (slightly) inhomogeneous cloud of self-gravitating particles. The cloud is driven towards…
Quantum effects in nanosystems: good reasons to use phase-space Weyl symbols
Ruggero Vaia
Bogoliubov transformations have been successfully applied in several Condensed Matter contexts, e.g., in the theory of superconductors, superfluids, and antiferromagnets. These app…
Synchronization in networks with multiple interaction layers
Charo I. del Genio, Jesús Gómez-Gardeñes, Ivan Bonamassa +1
The structure of many real-world systems is best captured by networks consisting of several interaction layers. Understanding how a multi-layered structure of connections affects t…
Optothermal nonlinearity of silica aerogel
Maria Chiara Braidotti, Silvia Gentilini, Adam Fleming +3
We report on the characterization of silica aerogel thermal optical nonlinearity, obtained by z-scan technique. The results show that typical silica aerogels have nonlinear optical…
Density of states and dynamical crossover in a dense fluid revealed by exponential mode analysis of the velocity autocorrelation function
S. Bellissima, M. Neumann, E. Guarini +2
Extending a previous study of the velocity autocorrelation function (VAF) in a simulated Lennard-Jones fluid to cover higher-density and lower-temperature states, we show that the…
On the numerical study of percolation and epidemic critical properties in networks
Claudio Castellano, Romualdo Pastor-Satorras
The static properties of the fundamental model for epidemics of diseases allowing immunity (susceptible-infected-removed model) are known to be derivable by an exact mapping to bon…