10.1k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Sapienza University of RomeIT156 papers
- Scuola Internazionale Superiore di Studi AvanzatiIT146 papers
- University of InsubriaIT88 papers
- University of MilanIT85 papers
- University of TrentoIT85 papers
- Politecnico di TorinoIT78 papers
- University of FlorenceIT74 papers
- University of GenoaIT69 papers
- Centre National de la Recherche ScientifiqueFR65 papers
- The Abdus Salam International Centre for Theoretical Physics (ICTP)IT65 papers
- National Research CouncilLK58 papers
- University of SalernoIT56 papers
42 papers · 2 filters
On the relationship between directed percolation and the synchronization transition in spatially extended systems
F. Ginelli, R. Livi, A. Politi +1
We study the nature of the synchronization transition in spatially extended systems by discussing a simple stochastic model. An analytic argument is put forward showing that, in th…
Degree stability of a minimum spanning tree of price return and volatility
Salvatore Miccichè, Giovanni Bonanno, Fabrizio Lillo +1
We investigate the time series of the degree of minimum spanning trees obtained by using a correlation based clustering procedure which is starting from (i) asset return and (ii) v…
Real-Time Wavelet-transform spectrum analyzer for the investigation of 1/f^αnoise
Doriano Brogioli, Alberto Vailati
A wavelet transform spectrum analyzer operating in real time within the frequency range 3X10^(-5) - 1.3X10^5 Hz has been implemented on a low-cost Digital Signal Processing board o…
Computer simulation of structural properties of dilute aqueous solutions of argon at supercritical conditions
V. De Grandis, P. Gallo, M. Rovere
Computer simulation studies of aqueous solutions of argon are performed from ambient to supercritical conditions by using a recent polarizable potential model (BSV) and the non pol…
Spontaneous magnetization of the Ising model on the Sierpinski carpet fractal, a rigorous result
A. Vezzani
We give a rigorous proof of the existence of spontaneous magnetization at finite temperature for the Ising spin model defined on the Sierpinski carpet fractal. The theorem is inspi…
Comment on "Aging, phase ordering and conformal invariance"
Federico Corberi, Eugenio Lippiello, Marco Zannetti
This is a Comment on the Article ``Aging, phase ordering and conformal invariance'' by M.Henkel, M.Pleimling, C.Godrèche and J.M.Luck [Phys.Rev.Lett. 87, 265701 (2001)].
Path integral Monte Carlo for dissipative many-body systems
Luca Capriotti, Alessandro Cuccoli, Andrea Fubini +2
We address the possibility of performing numerical Monte Carlo simulations for the thermodynamics of quantum dissipative systems. Dissipation is considered within the Caldeira-Legg…
Correlation Functions and Fluctuation-Dissipation Relation in Driven Mixtures: an exactly solvable model
Federico Corberi, Giuseppe Gonnella, Eugenio Lippiello +1
The dynamics of a binary system with non conserved order parameter under a plain shear flow with rate is solved analytically in the large-N limit. A phase transition is observe…
Relaxation and overlap probability function in the spherical and mean spherical model
N. Fusco, M. Zannetti
The problem of the equivalence of the spherical and mean spherical models, which has been thoroughly studied and understood in equilibrium, is considered anew from the dynamical po…
Scissors mode of a rotating Bose-Einstein condensate
Marco Cozzini, Sandro Stringari, Vincent Bretin +2
A scissors mode of a rotating Bose-Einstein condensate is investigated both theoretically and experimentally. The condensate is confined in an axi-symmetric harmonic trap, superimp…
Criticality and finite size effects in a simple realistic model of stock market
Damien Challet, Matteo Marsili
We discuss a simple model based on the Minority Game which reproduces the main stylized facts of anomalous fluctuations in finance. We present the analytic solution of the model in…
Effects of Pore Walls and Randomness on Phase Transitions in Porous Media
Marek Cieplak, Amos Maritan, Michael R. Swift +2
We study spin models within the mean field approximation to elucidate the topology of the phase diagrams of systems modeling the liquid-vapor transition and the separation of He$^3…
Dynamics of a financial market index after a crash
Fabrizio Lillo, Rosario N. Mantegna
We discuss the statistical properties of index returns in a financial market just after a major market crash. The observed non-stationary behavior of index returns is characterized…
The process of irreversible nucleation in multilayer growth. II. Exact results in one and two dimensions
Paolo Politi, Claudio Castellano
We study irreversible dimer nucleation on top of terraces during epitaxial growth in one and two dimensions, for all values of the step-edge barrier. The problem is solved exactly…
The process of irreversible nucleation in multilayer growth. I. Failure of the mean-field approach
Paolo Politi, Claudio Castellano
The formation of stable dimers on top of terraces during epitaxial growth is investigated in detail. In this paper we focus on mean-field theory, the standard approach to study nuc…
Ground-state properties of a dilute Bose-Fermi mixture
L. Viverit, S. Giorgini
We investigate the properties of a dilute boson-fermion mixture at zero temperature. The ground-state energy of the system is calculated to second order in the Bose-Fermi coupling…
A microscopic 2D lattice model of dimer granular compaction with friction
C. Fusco, A. Fasolino, P. Gallo +2
We study by Monte Carlo simulation the compaction dynamics of hard dimers in 2D under the action of gravity, subjected to vertical and horizontal shaking, considering also the case…
Diffusive Thermal Dynamics for the Ising Ferromagnet
P. Buonsante, R. Burioni, D. Cassi +1
We introduce a thermal dynamics for the Ising ferromagnet where the energy variations occurring within the system exhibit a diffusive character typical of thermalizing agents such…
Pressures for a One-Component Plasma on a Pseudosphere
R. Fantoni, B. Jancovici, G. Téllez
The classical (i.e. non-quantum) equilibrium statistical mechanics of a two-dimensional one-component plasma (a system of charged point-particles embedded in a neutralizing backgro…
Bose-condensed Bright Solitons under Transverse Confinement
L. Salasnich, A. Parola, L. Reatto
We investigate the dynamics of Bose-condensed bright solitons made of alkali-metal atoms with negative scattering length and under harmonic confinement in the transverse direction.…
Driven low density granular mixtures
R. Pagnani, U. Marini Bettolo Marconi, A. Puglisi
We study the steady state properties of a 2D granular mixture in the presence of energy driving by employing simple analytical estimates and Direct Simulation Monte Carlo. We adopt…
Periodic Quantum Tunneling and Parametric Resonance with Cigar-Shaped Bose-Einstein Condensates
L. Salasnich, A. Parola, L. Reatto
We study the tunneling properties of a cigar-shaped Bose-Einstein condensate by using an effective 1D nonpolynomial nonlinear Schrödinger equation (NPSE). First we investigate a me…
On the compressibility equation of state for multicomponent adhesive hard sphere fluids
Domenico Gazzillo, Achille Giacometti
The compressibility equation of state for a multicomponent fluid of particles interacting via an infinitely narrow and deep potential, is considered within the mean spherical appro…
Critical Temperature of an Interacting Bose Gas in a Generic Power-Law Potential
Luca Salasnich
We investigate the critical temperature of an interacting Bose gas confined in a trap described by a generic isotropic power-law potential. We compare the results with respect to t…