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
22 papers · 2 filters
Modulational Instabilities and Domain Walls in Coupled Discrete Nonlinear Schrödinger Equations
Z. Rapti, A. Trombettoni, P. G. Kevrekidis +3
We consider a system of two discrete nonlinear Schrödinger equations, coupled by nonlinear and linear terms. For various physically relevant cases, we derive a modulational instabi…
Ripples and Ripples
T. Aste, U. Valbusa
We study the morphological evolution of surfaces during ion sputtering and we compare their dynamical roughening with aeolian ripple formation in sandy deserts. We show that, altho…
Thermodynamic anomalies in a lattice model of water
M. Pretti, C. Buzano
We investigate a lattice-fluid model of water, defined on a three-dimensional body centered cubic lattice. Model molecules possess a tetrahedral symmetry, with four equivalent bond…
Bulk and Collective Properties of a Dilute Fermi Gas in the BCS-BEC Crossover
N. Manini, L. Salasnich
We investigate the zero-temperature properties of a dilute two-component Fermi gas with attractive interspecies interaction in the BCS-BEC crossover. We build an efficient parametr…
High sensitivity phonon spectroscopy of Bose-Einstein condensates using matter-wave interference
N. Katz, R. Ozeri, J. Steinhauer +3
We study low momentum excitations of a Bose-Einstein condensate using a novel matter-wave interference technique. In time-of-flight expansion images we observe strong matter-wave f…
Two-dimensional lattice-fluid model with water-like anomalies
C. Buzano, E. de Stefanis, A. Pelizzola +1
We investigate a lattice-fluid model defined on a two-dimensional triangular lattice, with the aim of reproducing qualitatively some anomalous properties of water. Model molecules…
Impermeability effects in three-dimensional vesicles
Paolo Biscari, Silvia Maria Canevese, Gaetano Napoli
We analyse the effects that the impermeability constraint induces on the equilibrium shapes of a three-dimensional vesicle hosting a rigid inclusion. A given alteration of the incl…
Similarity and contrasts between thermodynamic properties at the critical point of liquid alkali metals and of electron-hole droplets
F. E. Leys, N. H. March, G. G. N. Angilella +1
The recent experimental study by means of time-resolved luminescence measurements of an electron-hole liquid (EHL) in diamond by Shimano et al. [Phys. Rev. Lett. 88 (2002) 057404]…
Avoiding Infrared Catastrophes in Trapped Bose-Einstein Condensates
P. G. Kevrekidis, G. Theocharis, D. J. Frantzeskakis +1
This paper is concerned with the long wavelength instabilities (infrared catastrophes) occurring in Bose-Einstein condensates (BECs). We examine the modulational instability in ``c…
Role of transverse excitations in the instability of Bose-Einstein condensates moving in optical lattices
M. Modugno, C. Tozzo, F. Dalfovo
The occurrence of energetic and dynamical instabilities in a Bose-Einstein condensate moving in a one-dimensional (1D) optical lattice is analyzed by means of the Gross-Pitaevskii…
Modulational and Parametric Instabilities of the Discrete Nonlinear Schrödinger Equation
Z. Rapti, P. G. Kevrekidis, A. Smerzi +1
We examine the modulational and parametric instabilities arising in a non-autonomous, discrete nonlinear Schr{ö}dinger equation setting. The principal motivation for our study stem…
Propagation of sound in a Bose Einstein condensate in an optical lattice
C. Menotti, M. Kramer, A. Smerzi +2
We study the propagation of sound waves in a Bose-Einstein condensate trapped in a one-dimensional optical lattice. We find that the velocity of propagation of sound wavepackets de…
Double-Slit Interferometry with a Bose-Einstein Condensate
L. A. Collins, L. Pezze', A. Smerzi +2
A Bose-Einstein "double-slit" interferometer has been recently realized experimentally by (Y. Shin et. al., Phys. Rev. Lett. 92 50405 (2004)). We analyze the interferometric steps…
Integral equation for inhomogeneous condensed bosons generalizing the Gross-Pitaevskii differential equation
G. G. N. Angilella, N. H. March, R. Pucci
We give here the derivation of a Gross-Pitaevskii--type equation for inhomogeneous condensed bosons. Instead of the original Gross-Pitaevskii differential equation, we obtain an in…
The Glass Transition Temperature of Water: A Simulation Study
Nicolas Giovambattista, C. Austen Angell, Francesco Sciortino +1
We report a computer simulation study of the glass transition for water. To mimic the difference between standard and hyperquenched glass, we generate glassy configurations with di…
Cooling rate, heating rate and aging effects in glassy water
Nicolas Giovambattista, H. Eugene Stanley, Francesco Sciortino
We report a molecular dynamics simulation study of the properties of the potential energy landscape sampled by a system of water molecules during the process of generating a glass…
Effect of bond lifetime on the dynamics of a short-range attractive colloidal system
I. Saika-Voivod, E. Zaccarelli, F. Sciortino +2
We perform molecular dynamics simulations of short-range attractive colloid particles modeled by a narrow (3% of the hard sphere diameter) square well potential of unit depth. We c…
Structural relaxation in supercooled orthoterphenyl
S. -H. Chong, F. Sciortino
We report molecular-dynamics simulation results performed for a model of molecular liquid orthoterphenyl in supercooled states, which we then compare with both experimental data an…
Gap maps and intrinsic diffraction losses in one-dimensional photonic crystal slabs
D. Gerace, L. C. Andreani
A theoretical study of photonic bands for one-dimensional (1D) lattices embedded in planar waveguides with strong refractive index contrast is presented. The approach relies on exp…
Insulating Behavior of a Trapped Ideal Fermi Gas
L. Pezze', L. Pitaevskii, A. Smerzi +7
We investigate theoretically and experimentally the center-of-mass motion of an ideal Fermi gas in a combined periodic and harmonic potential. We find a crossover from a conducting…
The fate of phonons in freely expanding Bose-Einstein condensates
Cesare Tozzo, Franco Dalfovo
Phonon-like excitations can be imprinted into a trapped Bose-Einstein condensate of cold atoms using light scattering. If the condensate is suddenly let to freely expand, the initi…
Wannier functions of elliptic one-gap potentials
E D Belokolos, V Z Enolskii, M Salerno
Wannier functions of the one dimensional Schroedinger equation with elliptic one gap potentials are explicitly constructed. Properties of these functions are analytically and numer…