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
Stabilization of ratchet dynamics by weak periodic signals
Maria Barbi, Mario Salerno
We study the influence of weak periodic signals on the transport properties of underdamped ratchets. We find that the constant current intervals related to the ratchet, can be sign…
Magnetic Field Effect for Two Electrons in a Two Dimensional Random Potential
Giuliano Benenti, Dima L. Shepelyansky
We study the problem of two particles with Coulomb repulsion in a two-dimensional disordered potential in the presence of a magnetic field. For the regime, when without interaction…
Acetylene on Si(100) from first principles: adsorption geometries, equilibrium coverages and thermal decomposition
Pier Luigi Silvestrelli, Flavio Toigo, Francesco Ancilotto
Adsorption of acetylene on Si(100) is studied from first principles. We find that, among a number of possible adsorption configurations, the lowest-energy structure is a ``bridge''…
Spinon Attraction in Spin-1/2 Antiferromagnetic Chains
B. A. Bernevig, D. Giuliano, R. B. Laughlin
We derive the representation of the two-spinon wavefunction for the Haldane-Shastry model in terms of the spinon coordinates. This result allows us to rigorously analyze spinon int…
Quantum Phase Transitions and Vortex Dynamics in Superconducting Networks
Rosario Fazio, Herre van der Zant
Josephson junction arrays are ideal model systems where a variety of phenomena, phase transitions, frustration effects, vortex dynamics, chaos, to mention a few of them, can be stu…
Ab initio calculations of response properties including electron-hole interaction
Valerio Olevano, Stefan Albrecht, Lucia Reining
We discuss the current status of a computational approach which allows to evaluate the dielectric matrix, and hence electronic excitations like optical properties, including local…
States without linear counterpart in Bose-Einstein condensates
Roberto D'Agosta, Carlo Presilla
We show the existence of stationary solutions of a 1-D Gross-Pitaevskii equation in presence of a multi-well external potential that do not reduce to any of the eigenfunctions of t…
Phase-separation of binary fluids in shear flow: a numerical study
F. Corberi, G. Gonnella, A. Lamura
The phase-separation kinetics of binary fluids in shear flow is studied numerically in the framework of the continuum convection-diffusion equation based on a Ginzburg-Landau free…
Regular and Anomalous Quantum Diffusion in the Fibonacci Kicked Rotator
G. Casati, G. Mantica, D. L. Shepelyansky
We study the dynamics of a quantum rotator kicked according to the almost-periodic Fibonacci sequence. A special numerical technique allows us to carry on this investigation for as…
Overcritical Rotation of a Trapped Bose-Einstein Condensate
A. Recati, F. Zambelli, S. Stringari
The rotational motion of an interacting Bose-Einstein condensate confined by a harmonic trap is investigated by solving the hydrodynamic equations of superfluids, with the irrotati…
How to measure the Bogoliubov quasiparticle amplitudes in a trapped condensate
A. Brunello, F. Dalfovo, L. Pitaevskii +1
We propose an experiment, based on two consecutive Bragg pulses, to measure the momentum distribution of quasiparticle excitations in a trapped Bose gas at low temperature. With th…
Dynamics of two colliding Bose-Einstein condensates in an elongated magneto-static trap
M. Modugno, F. Dalfovo, C. Fort +2
We study the dynamics of two interacting Bose-Einstein condensates, by numerically solving two coupled Gross-Pitaevskii equations at zero temperature. We consider the case of a sud…
Unambiguous determination of the g-factor for holes in bismuth at high B/T
S. G. Bompadre, C. Biagini, D. Maslov +1
Magnetotransport has been investigated in high purity bismuth crystals in static magnetic fields as high as 20 T and temperatures as low as 25 mK. This high B/T ratio permits obser…
Collisional damping of the collective oscillations of a trapped Fermi gas
L. Vichi
We consider a Fermi gas confined by a harmonic trapping potential and we highlight the role of the Fermi-Dirac statistics by studying frequency and damping of collective oscillatio…
Lattice Boltzmann simulations of segregating binary fluid mixtures in shear flow
A. Lamura, G. Gonnella
We apply lattice Boltzmann method to study the phase separation of a two-dimensional binary fluid mixture in shear flow. The algorithm can simulate systems described by the Navier-…
Moment of Inertia and Quadrupole Response Function of a Trapped Superfluid
Francesca Zambelli, Sandro Stringari
We derive an explicit relationship between the moment of inertia and the quadrupole response function of an interacting gas confined in a harmonic trap. The relationship holds for…
Bose-Einstein condensation in inhomogeneous Josephson arrays
R. Burioni, D. Cassi, I. Meccoli +3
We show that spatial Bose-Einstein condensation of non-interacting bosons occurs in dimension d < 2 over discrete structures with inhomogeneous topology and with no need of externa…
Electronic Properties of Ultra-Thin Aluminum Nanowires
F. Di Tolla, A. Dal Corso, J. A. Torres +1
We have carried out first principles electronic structure and total energy calculations for a series of ultrathin aluminum nanowires, based on structures obtained by relaxing the m…
Adsorption of benzene on Si(100) from first principles
Pier Luigi Silvestrelli, Francesco Ancilotto, Flavio Toigo
Adsorption of benzene on the Si(100) surface is studied from first principles. We find that the most stable configuration is a tetra--bonded structure characterized by one C-C d…
Structure and rheology of binary mixtures in shear flow
F. Corberi, G. Gonnella, A. Lamura
Results are presented for the phase separation process of a binary mixture subject to an uniform shear flow quenched from a disordered to a homogeneous ordered phase. The kinetics…
Pinning of quantized vortices in helium drop by dopant atoms and molecules
Franco Dalfovo, Ricardo Mayol, Marti Pi +1
Using a density functional method, we investigate the properties of liquid 4He droplets doped with atoms (Ne and Xe) and molecules (SF_6 and HCN). We consider the case of droplets…
Electron-phonon interaction in C70
D. Provasi, N. Breda, R. A. Broglia +3
The matrix elements of the deformation potential of C are calculated by means of a simple, yet accurate solution of the electron-phonon coupling problem in fullerenes, based…