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
41 papers · 2 filters
Shell Effects and Phase Separation in a Trapped Multi-Component Fermi System
L. Salasnich, A. Parola, L. Reatto
Shell effects in the coordinate space can be seen with degenerate Fermi vapors in non-uniform trapping potentials. In particular, below the Fermi temperature, the density profile o…
The order-disorder transition of the (3x3)Sn/Ge(111) phase
L. Floreano, D. Cvetko, G. Bavdek +2
Growing attention has been drawn in the past years to the α-phase (1/3 monolayer) of Sn on Ge(111), which undergoes a transition from the low temperature (3x3) phase to the room te…
Memory Effects and Heat Transport in One-dimensional Insulators
Stefano Lepri
We study the dynamical correlation functions and heat conduction for the simplest model of quasi one-dimensional (1d) dielectric crystal i.e. a chain of classical particles coupled…
Glass transition and layering effects in confined water: a computer simulation study
P. Gallo, M. Rovere, E. Spohr
Single particle dynamics of water confined in a nanopore is studied through Computer Molecular Dynamics. The pore is modeled to represent the average properties of a pore of Vycor…
Quantum critical behavior in disordered itinerant ferromagnets: Logarithmic corrections to scaling
D. Belitz, T. R. Kirkpatrick, Maria Teresa Mercaldo +1
The quantum critical behavior of disordered itinerant ferromagnets is determined exactly by solving a recently developed effective field theory. It is shown that there are logarith…
The BCS model and the off shell Bethe ansatz for vertex models
Luigi Amico, G. Falci, Rosario Fazio
We study the connection between the BCS pairing model and the inhomogeneous vertex model. The two spectral problems coincide in the quasi-classical limit of the off-shell Bethe Ans…
Empirical properties of the variety of a financial portfolio and the single-index model
Fabrizio Lillo, Rosario N. Mantegna
We investigate the variety of a portfolio of stocks in normal and extreme days of market activity. We show that the variety carries information about the market activity which is n…
Driven granular gases with gravity
A. Baldassarri, U. Marini Bettolo Marconi, A. Puglisi +1
We study fluidized granular gases in a stationary state determined by the balance between an external driving and the bulk dissipation. The two considered situations are inspired b…
Local field theory for disordered itinerant quantum ferromagnets
D. Belitz, T. R. Kirkpatrick, Maria Teresa Mercaldo +1
An effective field theory is derived that describes the quantum critical behavior of itinerant ferromagnets in the presence of quenched disorder. In contrast to previous approaches…
The Free Energy Surface of Supercooled Water
A. Scala, F. W. Starr, E. La Nave +2
We present a detailed analysis of the free energy surface of a well characterized rigid model for water in supercooled states. We propose a functional form for the liquid free ener…
Computer simulations of liquid silica: equation of state and liquid-liquid phase transition
Ivan Saika-Voivod, Francesco Sciortino, Peter H. Poole
We conduct extensive molecular dynamics computer simulations of two models for liquid silica [the model of Woodcock, Angell and Cheeseman, J. Phys. Chem. 65, 1565 (1976); and that…
Microscopic dynamics underlying the anomalous diffusion
G. Kaniadakis, G. Lapenta
The time dependent Tsallis statistical distribution describing anomalous diffusion is usually obtained in the literature as the solution of a non-linear Fokker-Planck (FP) equation…
Interface fluctuations, bulk fluctuations and dimensionality in the off-equilibrium response of coarsening systems
Federico Corberi, Eugenio Lippiello, Marco Zannetti
The relationship between statics and dynamics proposed by Franz, Mezard, Parisi and Peliti (FMPP) for slowly relaxing systems [Phys.Rev.Lett. {\bf 81}, 1758 (1998)] is investigated…
Diffusive mass transfer by non equilibrium fluctuations: Fick's law revisited
Doriano Brogioli, Alberto Vailati
Recent experimental and theoretical works have shown that giant fluctuations are present during diffusion in liquid systems. We use linearized fluctuating hydrodynamics to calculat…
Variety and Volatility in Financial Markets
Fabrizio Lillo, Rosario N. Mantegna
We study the price dynamics of stocks traded in a financial market by considering the statistical properties both of a single time series and of an ensemble of stocks traded simult…
Finite-temperature ordering in two-dimensional magnets
Alessandro Cuccoli, Valerio Tognetti, Tommaso Roscilde +2
We study the two dimensional quantum Heisenberg antiferromagnet on the square lattice with easy-axis exchange anisotropy. By the semiclassical method called pure-quantum self-consi…
Thermodynamics of Multi-Component Fermi Vapors
L. Salasnich, B. Pozzi, A. Parola +1
We study the thermodynamical properties of Fermi vapors confined in a harmonic external potential. In the case of the ideal Fermi gas, we compare exact density profiles with their…
Reply to Comment on ``Thermal Model for Adaptive Competition in a Market''
Andrea Cavagna, Juan P. Garrahan, Irene Giardina +1
We reply to the Comment of Challet et al. [cond-mat/0004308] on our paper [Phys. Rev. Lett. 83, 4429 (1999)]. We show that the claim of the Comment that the effects of the temperat…
The fully frustrated XY model with next nearest neighbor interaction
G. Franzese, V. Cataudella, S. E. Korshunov +1
We introduce a fully frustrated XY model with nearest neighbor (nn) and next nearest neighbor (nnn) couplings which can be realized in Josephson junction arrays. We study the phase…
Steady State of microemulsions in shear flow
F. Corberi, G. Gonnella, D. Suppa
Steady-state properties of microemulsions in shear flow are studied in the context of a Ginzburg-Landau free-energy approach. Explicit expressions are given for the structure facto…
Relevance of memory in Minority Games
Damien Challet, Matteo Marsili
By considering diffusion on De Bruijn graphs, we study in details the dynamics of the histories in the Minority Game, a model of competition between adaptative agents. Such graphs…
Thermodynamics of Bose-Condensed Atomic Hydrogen
B. Pozzi, L. Salasnich, A. Parola +1
We study the thermodynamics of the Bose-condensed atomic hydrogen confined in the Ioffe-Pritchard potential. Such a trapping potential, that models the magnetic trap used in recent…
Trading behavior and excess volatility in toy markets
M. Marsili, D. Challet
We study the relation between the trading behavior of agents and volatility in toy markets of adaptive inductively rational agents. We show that excess volatility, in such simplifi…
Nonequilibrium phase transition in a model for social influence
Claudio Castellano, Matteo Marsili, Alessandro Vespignani
We present extensive numerical simulations of the Axelrod's model for social influence, aimed at understanding the formation of cultural domains. This is a nonequilibrium model wit…