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
11 papers · 2 filters
Critical behaviour of the three-dimensional gonihedric Ising Model
E. N. M. Cirillo, G. Gonnella, A. Pelizzola
We use the cluster variation method (CVM) and Monte Carlo simulations to investigate the phase structure of the 3d gonihedric Ising actions defined by Savvidy and Wegner. This mode…
Steric constraints in model proteins
Cristian Micheletti, Jayanth R. Banavar, Amos Maritan +1
A simple lattice model for proteins that allows for distinct sizes of the amino acids is presented. The model is found to lead to a significant number of conformations that are the…
Energy constrained sandpile models
Alessandro Chessa, Enzo Marinari, Alessandro Vespignani
We study two driven dynamical systems with conserved energy. The two automata contain the basic dynamical rules of the Bak, Tang and Wiesenfeld sandpile model. In addition a global…
Effective Potential, Mori Product and Quantum Dynamics
A. Cuccoli, R. Giachetti, V. Tognetti +1
We present a method that permits the calculation of the dynamical correlation functions for quantum systems. These are obtained by evaluating the generating functionals of the stat…
Phase-transitions induced by easy-plane anisotropy in the classical Heisenberg antiferromagnet on a triangular lattice: a Monte Carlo simulation
Luca Capriotti, Ruggero Vaia, Alessandro Cuccoli +1
We present the results of Monte Carlo simulations for the antiferromagnetic classical XXZ model with easy-plane exchange anisotropy on the triangular lattice, which causes frustrat…
Cutting-Decimation Renormalization for diffusive and vibrational dynamics on fractals
Raffaella Burioni, Davide Cassi, Sofia Regina
Recently, we pointed out that on a class on non exactly decimable fractals two different parameters are required to describe diffusive and vibrational dynamics. This phenomenon we…
Diffusion on non exactly decimable tree-like fractals
Raffaella Burioni, Davide Cassi, Alberto Pirati +1
We calculate the spectral dimension of a wide class of tree-like fractals by solving the random walk problem through a new analytical technique, based on invariance under generaliz…
A semi-schematic model for the center of mass dynamics in supercooled molecular liquids
Linda Fabbian, Francesco Sciortino, Filippo Thiery +1
We introduce a semi-schematic mode-coupling model to describe the slow dynamics in molecular liquids, retaining explicitly only the description of the center of mass degrees of fre…
The two-dimensional quantum Heisenberg antiferromagnet: effective Hamiltonian approach to the thermodynamics
Alessandro Cuccoli, Valerio Tognetti, Ruggero Vaia +1
In this paper we present an extensive study of the thermodynamic properties of the two-dimensional quantum Heisenberg antiferromagnet on the square lattice; the problem is tackled…
Kinetic energy of solid neon by Monte Carlo with improved Trotter- and finite-size extrapolation
Alessandro Cuccoli, Alessandro Macchi, Gaia Pedrolli +2
The kinetic energy of solid neon is calculated by a path-integral Monte Carlo approach with a refined Trotter- and finite-size extrapolation. These accurate data present significan…
Thermodynamics of dissipative quantum systems by effective potential
Alessandro Cuccoli, Andrea Rossi, Valerio Tognetti +1
Classical-like formulas are given in order to evaluate thermal averages of observables belonging to a quantum nonlinear system with dissipation described by the Caldeira-Leggett mo…