1.5k citations
Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- University of PaduaIT221 papers
- University of PalermoIT137 papers
- Centre National de la Recherche ScientifiqueFR115 papers
- University of MilanIT114 papers
- Sapienza University of RomeIT98 papers
- University of InsubriaIT98 papers
- University of PaviaIT89 papers
- University of SalernoIT87 papers
- Istituto Nazionale di Fisica Nucleare, Sezione di MilanoIT76 papers
- Roma Tre UniversityIT63 papers
- University of Naples Federico IIIT61 papers
- Istituto Nazionale di Fisica NucleareIT59 papers
49 papers · 1 filter
Rotating He-3 droplets
Marti Pi, Francesco Ancilotto, Manuel Barranco
Motivated by recent experiments, we study normal-phase rotating He-3 droplets within Density Functional Theory in a semi-classical approach. The sequence of rotating droplet shapes…
Angular momentum in rotating superfluid droplets
Sean M. O. OConnell, Rico Mayro P. Tanyag, Deepak Verma +14
The angular momentum of rotating superfluid droplets originates from quantized vortices and capillary waves, the interplay between which remains to be uncovered. Here, the rotation…
Density functional theory modeling of vortex shedding in superfluid He-4
A. Freund, D. Gonzalez, X. Buelna +2
Formation of vortex rings around moving spherical objects in superfluid He-4 at 0 K is modeled by time-dependent density functional theory. The simulations provide detailed informa…
Why zero-point quantum noise cannot be detected at thermal equilibrium: Casimir force and zero-point contribution in the fluctuation-dissipation theorem
Lino Reggiani, Eleonora Alfinito
The role played by zero-point contribution, also called quantum noise or vacuum fluctuations, in the quantum expression of the fluctuation-dissipation theorem (FDT) is a long-stand…
Superfluid behavior of quasi-1D p-H inside carbon nanotube
Maurizio Rossi, Francesco Ancilotto
We perform ab-initio Quantum Monte Carlo simulations of para-hydrogen (pH) at K confined in carbon nanotubes (CNT) of different radii. The radial density profiles show a…
Equivalence classes of Fibonacci lattices and their similarity properties
N. Lo Gullo, L. Vittadello, M. Bazzan +1
We investigate, theoretically and experimentally,the properties of diffraction spectra of Fibonacci lattices with arbitrary spacings. We show that, by means of a suitable compositi…
Ultra-low threshold polariton lasing in photonic crystal cavities
Stefano Azzini, Dario Gerace, Matteo Galli +5
The authors show clear experimental evidence of lasing of exciton polaritons confined in L3 photonic crystal cavities. The samples are based on an InP membrane in air containing fi…
Characterizing and Quantifying Frustration in Quantum Many-Body Systems
S. M. Giampaolo, G. Gualdi, A. Monras +1
We present a general scheme for the study of frustration in quantum systems. We introduce a universal measure of frustration for arbitrary quantum systems and we relate it to a cla…
Two-color ionization of hydrogen by short intense pulses
Saverio Bivona, Giovanni Bonanno, Riccardo Burlon +1
Photoelectron energy spectra resulting by the interaction of hydrogen with two short pulses having carrier frequencies, respectively, in the range of the infrared and XUV regions h…
Long lived matter waves Bloch oscillations and dynamical localization by time dependent nonlinearity management
Yuliy V. Bludov, Vladimir V. Konotop, Mario Salerno
We introduce a new method to achieve long lived Bloch oscillations and dynamical localization of matter wave gap solitons in optical lattices. The method is based on time dependent…
Dynamical localization of gap-solitons by time periodic forces
Yu. V. Bludov, V. V. Konotop, M. Salerno
The phenomenon of dynamical localization of matter wave solitons in optical lattices is first demonstrated and the conditions for its existence are discussed. In addition to the tr…
Exciton polaritons in two-dimensional photonic crystals
Daniele Bajoni, Dario Gerace, Matteo Galli +7
Experimental evidence of strong coupling between excitons confined in a quantum well and the photonic modes of a two-dimensional dielectric lattice is reported. Both resonant scatt…
Time-resolved measurement of Landau-Zener tunneling in periodic potentials
A. Zenesini, H. Lignier, G. Tayebirad +6
We report time-resolved measurements of Landau-Zener tunneling of Bose-Einstein condensates in accelerated optical lattices, clearly resolving the step-like time dependence of the…
Zero Sound and First Sound in a Disk-Shaped Normal Fermi gas
Giovanni Mazzarella, Luca Salasnich, Flavio Toigo
We study the zero sound and the first sound in a dilute and ultracold disk-shaped normal Fermi gas with a strong harmonic confinement along the axial direction and uniform in the t…
Exciton-phonon scattering and photo-excitation dynamics in J-aggregate microcavities
P. Michetti, G. C. La Rocca
We have developed a model accounting for the photo-excitation dynamics and the photoluminescence of strongly coupled J-aggregate microcavities. Our model is based on a description…
Gap-Townes solitons and delocalizing transitions of multidimensional Bose-Einstein condensates in optical lattices
M. Salerno, F. Kh. Abdullaev, B. B. Baizakov
We show the existence of gap-Townes solitons for the multidimensional Gross-Pitaeviskii equation with attractive interactions and in two- and three-dimensional optical lattices. In…
Fermionized photons in an array of driven dissipative nonlinear cavities
Iacopo Carusotto, Dario Gerace, Hakan Tureci +3
We theoretically investigate the optical response of a one-dimensional array of strongly nonlinear optical microcavities. When the optical nonlinearity is much larger than both los…
Trap modulation spectroscopy of the Mott-insulator transition in optical lattices
H. Lignier, A. Zenesini, D. Ciampini +5
We introduce a new technique to probe the properties of an interacting cold atomic gas that can be viewed as a dynamical compressibility measurement. We apply this technique to the…
Rabi oscillations of matter wave solitons in optical lattices
Yu. V. Bludov, V. V. Konotop, M. Salerno
Inter-band Rabi oscillations of gap soliton matter waves induced by time dependent periodic forces in combined linear and nonlinear optical lattices are for the first time demonstr…
Exploring dynamic localization with a Bose-Einstein condensate
Andre Eckardt, Martin Holthaus, Hans Lignier +4
We report on the experimental observation of dynamic localization of a Bose-Einstein condensate in a shaken optical lattice, both for sinusoidal and square-wave forcing. The formul…
Theory of severe slowdown in the relaxation of rings and clusters with antiferromagnetic interactions
Ioannis Rousochatzakis, Andreas Laeuchli, Ferdinando Borsa +1
We show that in the severe slowing down temperature regime the relaxation of antiferromagnetic rings and similar magnetic nanoclusters is governed by the quasi-continuum portion of…
DC and AC Josephson effects with superfluid Fermi atoms across a Feshbach resonance
L. Salasnich, F. Ancilotto, N. Manini +1
We show that both DC and AC Josephson effects with superfluid Fermi atoms in the BCS-BEC crossover can be described at zero temperature by a nonlinear Schrodinger equation (NLSE).…
Coherent control of dressed matter waves
Alessandro Zenesini, Hans Lignier, Donatella Ciampini +2
By moving the pivot of a pendulum rapidly up and down one can create a stable position with the pendulum's bob above the pivot rather than below it. This surprising and counterintu…
Extended Thomas-Fermi Density Functional for the Unitary Fermi Gas
Luca Salasnich, Flavio Toigo
We determine the energy density and the gradient correction of the extended Thomas-Fermi (ETF) density functional, where is number…