Istituto Nazionale per la Fisica della Materia

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19942026

most citedPhonons and related properties of extended systems from density-functional perturbation theory

10.1k citations

researchers with a paper here

Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.

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Showing 1995Show all

20 papers · 1 filter

cond-mat1995★ 9 cited

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…

cond-mat1995★ 42 cited

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…

hep-th1995★ 17 cited

Folding transition of the triangular lattice in a discrete three--dimensional space

Emilio N. M. Cirillo, Giuseppe Gonnella, Alessandro Pelizzola

A vertex model introduced by M. Bowick, P. Di Francesco, O. Golinelli, and E. Guitter (cond-mat/9502063) describing the folding of the triangular lattice onto the face centered cub…

cond-mat1995★ 17 cited

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…

cond-mat1995★ 11 cited

Atomic and electronic structure of ideal and reconstructed $α$ -Sn (111) surface

Zhong-Yi Lu, Guido L. Chiarotti, S. Scandolo +1

We have carried out an ab-initio study of $α$ -Sn (111), with the aim of predicting and understanding its structure, reconstructions, and electronic states. We consider a variety of…

cond-mat1995★ 48 cited

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…

cond-mat1995★ 8 cited

Phase Diagram of a Model of Correlated Hopping of Electrons in a Lattice of Berry Molecules

Giuseppe Santoro, Nicola Manini, Alberto Parola +1

The $1 D$ 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…

cond-mat1995★ 39 cited

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…

cond-mat1995★ 533 cited

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…

quant-ph1995★ 4 cited

Squeezed Vacuum Interferometry

Matteo G. A. Paris

A high-sensitive interferometric scheme is presented. It is based on homodyne detection and squeezed vacuum phase properties. The resulting phase sensitivity scales as $δϕ\simeq {1…

cond-mat1995★ 64 cited

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…

cond-mat1995★ 36 cited

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 $^{2}$ C $_{60}^{+}$ and $^{1}$ C $_{60}^{2 +}$ . The aim is to discover if this case, in analogy with the negative ion, possesses…

cond-mat1995★ 1 cited

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…

cond-mat1995★ 14 cited

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…

hep-th1995★ 21 cited

Folding transitions of the triangular lattice with defects

Emilio N. M. Cirillo, Giuseppe Gonnella, Alessandro Pelizzola

A recently introduced model describing the folding of the triangular lattice is generalized allowing for defects in the lattice and written as an Ising model with nearest-neighbor…

cond-mat1995★ 5 cited

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…

cond-mat1995★ 19 cited

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…

mtrl-th1995★ 87 cited

Chemical Hardness, Linear Response, and Pseudopotential Transferability

A. Filippetti, David Vanderbilt, W. Zhong +2

We propose a systematic method of analyzing pseudopotential transferability based on linear-response properties of the free atom, including self-consistent chemical hardness and po…