492 citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT122 papers
- University of Rome Tor VergataIT96 papers
- National Research CouncilLK91 papers
- Harvard UniversityUS59 papers
- Italian Institute of TechnologyIT57 papers
- International Center for Relativistic AstrophysicsIT42 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di FirenzeIT36 papers
- Institut des Hautes Études ScientifiquesFR33 papers
- Eindhoven University of TechnologyNL32 papers
- ETH ZurichCH31 papers
- Centre National de la Recherche ScientifiqueFR30 papers
- Villanova UniversityUS30 papers
19 papers · 1 filter
Lattice Boltzmann method at finite-Knudsen numbers
Federico Toschi, Sauro Succi
A modified lattice Boltzmann model with a stochastic relaxation mechanism mimicking "virtual'' collisions between free-streaming particles and solid walls is introduced. This modif…
Spinning particles in the vacuum C metric
Donato Bini, Christian Cherubini, Andrea Geralico +1
The motion of a spinning test particle given by the Mathisson-Papapetrou equations is studied on an exterior vacuum C metric background spacetime describing the accelerated motion…
Analytical calculation of slip flow in lattice Boltzmann models with kinetic boundary conditions
Mauro Sbragaglia, Sauro Succi
We present a mathematical formulation of kinetic boundary conditions for Lattice Boltzmann schemes in terms of reflection, slip, and accommodation coefficients. It is analytically…
Spinning test particles and clock effect in Kerr spacetime
Donato Bini, Fernando de Felice, Andrea Geralico
We study the motion of spinning test particles in Kerr spacetime using the Mathisson-Papapetrou equations; we impose different supplementary conditions among the well known Corinal…
Spinning test particles and clock effect in Schwarzschild spacetime
Donato Bini, Fernando de Felice, Andrea Geralico
We study the behaviour of spinning test particles in the Schwarzschild spacetime. Using Mathisson-Papapetrou equations of motion we confine our attention to spatially circular orbi…
Rayleigh and Prandtl number scaling in the bulk of Rayleigh-Benard turbulence
Enrico Calzavarini, Detlef Lohse, Federico Toschi +1
The Rayleigh (Ra) and Prandtl (Pr) number scaling of the Nusselt number Nu, the Reynolds number Re, the temperature fluctuations, and the kinetic and thermal dissipation rates is s…
Limitations of Radar Coordinates
Donato Bini, Luca Lusanna, Bahram Mashhoon
The construction of a radar coordinate system about the world line of an observer is discussed. Radar coordinates for a hyperbolic observer as well as a uniformly rotating observer…
Effects of collisions against thermal impurities in the dynamics of a trapped fermion gas
P. Capuzzi, P. Vignolo, F. Toschi +2
We present a theoretical study of the dynamical behavior of a gas made of ultracold fermionic atoms, which during their motions can collide with a much smaller number of thermal bo…
PELCR: Parallel Environment for Optimal Lambda-Calculus Reduction
M. Pedicini, F. Quaglia
In this article we present the implementation of an environment supporting Lévy's \emph{optimal reduction} for the -calculus \cite{Lev78} on parallel (or distributed) computing…
Geometric transport along circular orbits in stationary axisymmetric spacetimes
Donato Bini, Christian Cherubini, Gianluca Cruciani +1
Parallel transport along circular orbits in orthogonally transitive stationary axisymmetric spacetimes is described explicitly relative to Lie transport in terms of the electric an…
A lattice Boltzmann study of non-hydrodynamic effects in shell models of turbulence
R. Benzi, L. Biferale, M. Sbragaglia +2
A lattice Boltzmann scheme simulating the dynamics of shell models of turbulence is developed. The influence of high order kinetic modes (ghosts) on the dissipative properties of t…
A lattice Boltzmann model with random dynamical constraints
A. Lamura, S. Succi
In this paper we introduce a modified lattice Boltzmann model (LBM) with the capability of mimicking a fluid system with dynamic heterogeneities. The physical system is modeled as…
Lattice Boltzmann model with hierarchical interactions
A. Lamura, S. Succi
We present a numerical study of the dynamics of a non-ideal fluid subject to a density-dependent pseudo-potential characterized by a hierarchy of nested attractive and repulsive in…
Petrov classification of perturbed spacetimes: the Kasner example
Christian Cherubini, Donato Bini, Marco Bruni +1
In this paper we consider vacuum Kasner spacetimes, focusing on those that can be parametrized as linear perturbations of the special Petrov type D case. For these quasi-D Kasner m…
Multifractal statistics of Lagrangian velocity and acceleration in turbulence
L. Biferale, G. Boffetta, A. Celani +3
The statistical properties of velocity and acceleration fields along the trajectories of fluid particles transported by a fully developed turbulent flow are investigated by means o…
The Simon and Simon-Mars Tensors for Stationary Einstein-Maxwell Fields
Donato Bini, Christian Cherubini, Robert T. Jantzen +1
Modulo conventional scale factors, the Simon and Simon-Mars tensors are defined for stationary vacuum spacetimes so that their equality follows from the Bianchi identities of the s…
Lagrangian statistics in fully developed turbulence
L. Biferale, G. Boffetta, A. Celani +2
The statistical properties of fluid particles transported by a fully developed turbulent flow are investigated by means of high resolution direct numerical simulations. Single traj…
Anomalous scaling and universality in hydrodynamic systems with power-law forcing
L. Biferale, M. Cencini, A. S. Lanotte +2
The problem of the interplay between normal and anomalous scaling in turbulent systems stirred by a random forcing with a power law spectrum is addressed. We consider both linear a…
Vacuum C-metric and the Gravitational Stark Effect
Donato Bini, Christian Cherubini, Bahram Mashhoon
We study the vacuum C-metric and its physical interpretation in terms of the exterior spacetime of a uniformly accelerating spherically - symmetric gravitational source. Wave pheno…