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
37 papers · 2 filters
Which is the temperature of granular systems? A mean field model of free cooling inelastic mixtures
Umberto Marini Bettolo Marconi, Andrea Puglisi
We consider a mean field model describing the free cooling process of a two component granular mixture, a generalization of so called Maxwell model. The cooling is viewed as an ord…
Power law relaxation in a complex system: Omori law after a financial market crash
Fabrizio Lillo, Rosario N. Mantegna
We study the relaxation dynamics of a financial market just after the occurrence of a crash by investigating the number of times the absolute value of an index return is exceeding…
On the connection between off-equilibrium response and statics in non disordered coarsening systems
Federico Corberi, Eugenio Lippiello, Marco Zannetti
The connection between the out of equilibrium linear response function and static properties established by Franz, Mezard, Parisi and Peliti for slowly relaxing systems is analyzed…
Stretched exponential relaxation in a diffusive lattice model
C. Fusco, P. Gallo, A. Petri +1
We studied the single dimer dynamics in a lattice diffusive model as a function of particle density in the high densification regime. The mean square displacement is found to be su…
Simulating Quantum Dissipation in Many-Body Systems
Luca Capriotti, Alessandro Cuccoli, Andrea Fubini +2
An efficient Path Integral Monte Carlo procedure is proposed to simulate the behavior of quantum many-body dissipative systems described within the framework of the influence funct…
Coarsening process in one-dimensional surface growth models
Alessandro Torcini, Paolo Politi
Surface growth models may give rise to unstable growth with mound formation whose tipical linear size L increases in time. In one dimensional systems coarsening is generally driven…
Self-consistent Ornstein-Zernike approximation for three-dimensional spins
D. Pini, J. S. Hoye, G. Stell
An Ornstein-Zernike approximation for the two-body correlation function embodying thermodynamic consistency is applied to a system of classical Heisenberg spins on a three-dimensio…
Quantitative tests of mode-coupling theory for fragile and strong glass-formers
Walter Kob, Markus Nauroth, Francesco Sciortino
We calculate for a binary mixture of Lennard-Jones particles the time dependence of the solution of the mode-coupling equations in which the full wave vector dependence is taken in…
Pathological Behavior in the Spectral Statistics of the Asymmetric Rotor Model
V. R. Manfredi, L. Salasnich
The aim of this work is to study the spectral statistics of the asymmetric rotor model (triaxial rigid rotator). The asymmetric top is classically integrable and, according to the…
Quantum thermodynamics of systems with anomalous dissipative coupling
Alessandro Cuccoli, Andrea Fubini, Valerio Tognetti +1
The standard {\em system-plus-reservoir} approach used in the study of dissipative systems can be meaningfully generalized to a dissipative coupling involving the momentum, instead…
Phase ordering with a global conservation law: Ostwald ripening and coalescence
Massimo Conti, Baruch Meerson, Avner Peleg +1
Globally conserved phase ordering dynamics is investigated in systems with short range correlations in the initial condition. A Ginzburg-Landau equation with a global conservation…
Master Equation Approach to Molecular Motors
Gianluca Lattanzi, Amos Maritan
A master equation approach to molecular motors allows to describe a mechano-chemical cyclic system where chemical and translational degrees of freedom are treated on an equal footi…
Transport Anomalies and Marginal Fermi-Liquid Effects at a Quantum Critical Point
D. Belitz, S. L. Sessions, T. R. Kirkpatrick +3
The behavior of the conductivity and the density of states, as well as the phase relaxation time, of disordered itinerant electrons across a quantum ferromagnetic transition is dis…
Ensemble properties of securities traded in the NASDAQ market
Fabrizio Lillo, Rosario N. Mantegna
We study the price dynamics of stocks traded in the NASDAQ market by considering the statistical properties of an ensemble of stocks traded simultaneously. For each trading day of…
Evidence concerning Drying behavior of Ne near the Cs surface
Francesco Ancilotto, Stefano Curtarolo, Flavio Toigo +1
Using density functional (DF) and Monte Carlo methods, we have studied the properties of Ne adsorbed on a Cs surface, focusing on the region at and near saturated vapor pressure (S…
Glauber slow dynamics of the magnetization in a molecular Ising chain
A. Caneschi, D. Gatteschi, N. Lalioti +7
The slow dynamics (10^-6 s - 10^4 s) of the magnetization in the paramagnetic phase, predicted by Glauber for 1d Ising ferromagnets, has been observed with ac susceptibility and SQ…
Gauge-Invariant Formulation of Fermi's Golden Rule: Application to High-Field Transport in Semiconductors
Emanuele Ciancio, Fausto Rossi
A gauge-invariant formulation of Fermi's Golden rule is proposed. We shall rivisit the conventional description of carrier-phonon scattering in the presence of high electric fields…
Learning to coordinate in a complex and non-stationary world
M. Marsili, R. Mulet, F. Ricci-Tersenghi +1
We study analytically and by computer simulations a complex system of adaptive agents with finite memory. Borrowing the framework of the Minority Game and using the replica formali…
Geometrical aspects of protein folding
Jay Banavar, Amos Maritan, Cristian Micheletti +1
These lectures will address two questions. Is there a simple variational principle underlying the existence of secondary motifs in the native state of proteins? Is there a general…
Pulsed Macroscopic Quantum Tunneling of Falling Bose Condensates
L. Salasnich, A. Parola, L. Reatto
We investigate macroscopic quantum tunneling of a Bose condensate and how it is affected by the interatomic interaction. We study the dynamics of a condensate falling under gravity…
Comparative genomics study of inverted repeats in bacteria
Fabrizio Lillo, Salvatore Basile, Rosario N. Mantegna
We investigate the number of inverted repeats observed in 37 complete genomes of bacteria. The number of inverted repeats observed is much higher than expected using Markovian mode…
Growing length scales in a supercooled liquid close to an interface
Peter Scheidler, Walter Kob, Kurt Binder +1
We present the results of molecular dynamics computer simulations of a simple glass former close to an interface between the liquid and the frozen amorphous phase of the same mater…
Levels of complexity in financial markets
Giovanni Bonanno, Fabrizio Lillo, Rosario N. Mantegna
We consider different levels of complexity which are observed in the empirical investigation of financial time series. We discuss recent empirical and theoretical work showing that…
Phase transitions as topology changes in configuration space: an exact result
Lapo Casetti, E. G. D. Cohen, Marco Pettini
The phase transition in the mean-field XY model is shown analytically to be related to a topological change in its configuration space. Such a topology change is completely describ…