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
16 papers · 2 filters
Disordered Flat Phase and Phase Diagram for Restricted Solid on Solid Models of Fcc(110) Surfaces
G. Santoro, M. Vendruscolo, S. Prestipino +1
We discuss the results of a study of restricted solid-on-solid models for fcc (110) surfaces. These models are simple modifications of the exactly solvable BCSOS model, and are abl…
Role of Layering Oscillations at Liquid Metal Surfaces in Bulk Recrystallization and Surface Melting
Orio Tomagnini, Furio Ercolessi, Simonetta Iarlori +2
The contrasting melting behavior of different surface orientations in metals can be explained in terms of a repulsive or attractive effective interaction between the solid-liquid a…
Subdiffusive and superdiffusive quantum transport and generalized duality
M. Sassetti, H. Schomerus, U. Weiss
As a generic model for transport of interacting fermions through a barrier or interstitials in a lattice, quantum Brownian motion in a periodic potential is studied. There is a dua…
Atomic and electronic structure of ideal and reconstructed -Sn (111) surface
Zhong-Yi Lu, Guido L. Chiarotti, S. Scandolo +1
We have carried out an ab-initio study of -Sn (111), with the aim of predicting and understanding its structure, reconstructions, and electronic states. We consider a variety of…
Ab-initio Molecular Dynamics study of electronic and optical properties of silicon quantum wires: Orientational Effects
A. M. Saitta, F. Buda, G. Fiumara +1
We analyze the influence of spatial orientation on the optical response of hydrogenated silicon quantum wires. The results are relevant for the interpretation of the optical proper…
Phase Diagram of a Model of Correlated Hopping of Electrons in a Lattice of Berry Molecules
Giuseppe Santoro, Nicola Manini, Alberto Parola +1
The phase diagram of a model for correlated hopping of electrons in a lattice of Berry phase molecules is presented. Electrons hop in presence of an extra orbital degree of fr…
Preroughening, Diffusion, and Growth of An FCC(111) Surface
S. Prestipino, G. Santoro, E. Tosatt
Preroughening of close-packed fcc(111) surfaces, found in rare gas solids, is an interesting, but poorly characterized phase transition. We introduce a restricted solid-on-solid mo…
Bosons in anisotropic traps: ground state and vortices
F. Dalfovo, S. Stringari
We solve the Gross-Pitaevskii equations for a dilute atomic gas in a magnetic trap, modeled by an anisotropic harmonic potential. We evaluate the wave function and the energy of th…
Moment of Inertia and Superfluidity of a Trapped Bose Gas
S. Stringari
The temperature dependence of the moment of inertia of a dilute Bose gas confined in a harmonic trap is determined. Deviations from the rigid value, due to the occurrence of Bose-E…
Dynamical Jahn-Teller Effect and Berry Phase in Positively Charged Fullerene I. Basic Considerations
P. De Los Rios, N. Manini, E. Tosatti
We study the Jahn-Teller effect of positive fullerene ions C and C. The aim is to discover if this case, in analogy with the negative ion, possesses…
Fluctuation Dissipation Theorem and The Dynamical Renormalization Group
Achille Giacometti, Amos Maritan, Flavio Toigo +1
The relation between a recently introduced dynamical real space renormalization group and the fluctuation-dissipation theorem is discussed. An apparent incompatibility is pointed o…
Valence band structure, edge states and interband absorption in Quantum Well Wires in high magnetic fields
G. Goldoni, A. Fasolino
We present a theoretical study of the magnetic band structure of conduction and valence states in Quantum Well Wires in high magnetic fields. We show that hole mixing results in a…
Interplay of Orbital Degeneracy and Superconductivity in a Molecular Conductor
Michele Fabrizio, Marco Airoldi, Erio Tosatti
We study electron propagation in a molecular lattice model. Each molecular site involves doubly degenerate electronic states coupled to doubly degenerate molecular vibration, leadi…
Path integrals for spinning particles, stationary phase and the Duistermaat-Heckman theorem
E. Ercolessi, G. Morandi, F. Napoli +1
We examine the problem of the evaluation of both the propagator and of the partition function of a spinning particle in an external field at the classical as well as the quantum le…
Raman scattering from fractals. Simulation on large structures by the method of moments
G. Viliani, R. Dell'Anna, O. Pilla +4
We have employed the method of spectral moments to study the density of vibrational states and the Raman coupling coefficient of large 2- and 3- dimensional percolators at threshol…
Early stage scaling in phase ordering kinetics
F. Corberi, A. Coniglio, M. Zannetti
A global analysis of the scaling behaviour of a system with a scalar order parameter quenched to zero temperature is obtained by numerical simulation of the Ginzburg-Landau equatio…