Counting papers with at most 25 authors, so collaboration author lists do not stand in for the people here.
- Istituto Nazionale di Fisica Nucleare, Sezione di PisaIT2.2k papers
- University of PisaIT2.1k papers
- Massachusetts Institute of TechnologyUS2k papers
- University of PaduaIT1.9k papers
- Istituto Nazionale di Fisica Nucleare, Laboratori Nazionali di FrascatiIT1.7k papers
- Centre National de la Recherche ScientifiqueFR1.7k papers
- Istituto Nazionale di Fisica Nucleare, Sezione di Roma IIT1.7k papers
- Sapienza University of RomeIT1.6k papers
- University of Wisconsin–MadisonUS1.6k papers
- The Ohio State UniversityUS1.6k papers
- Johns Hopkins UniversityUS1.6k papers
- University of BolognaIT1.5k papers
12 papers · 2 filters
Probing the energy bands of a Bose-Einstein condensate in an optical lattice
M. L. Chiofalo, S. Succi, M. P. Tosi
We simulate three experimental methods which could be realized in the laboratory to probe the band excitation energies and the momentum distribution of a Bose-Einstein condensate i…
Time-Dependent Density-Functional Theory for Superfluids
M. L. Chiofalo, M. P. Tosi
A density-functional theory is established for inhomogeneous superfluids at finite temperature, subject to time-dependent external fields in isothermal conditions. After outlining…
Momentum flux density, kinetic energy density and their fluctuations for one-dimensional confined gases of non-interacting fermions
Anna Minguzzi, Patrizia Vignolo, M. P. Tosi
We present a Green's function method for the evaluation of the particle density profile and of the higher moments of the one-body density matrix in a mesoscopic system of N Fermi p…
Finite-Size Correlation Length and Violations of Finite-Size Scaling
Sergio Caracciolo, Andrea Gambassi, Massimiliano Gubinelli +1
We address the problem of the definition of the finite-volume correlation length. First, we study the large-N limit of the N-vector model, and we show the existence of several cons…
Exact particle and kinetic energy densities for one-dimensional confined gases of non-interacting fermions
Patrizia Vignolo, Anna Minguzzi, M. P. Tosi
We propose a new method for the evaluation of the particle density and kinetic pressure profiles in inhomogeneous one-dimensional systems of non-interacting fermions, and apply it…
Coherence properties of a continuous atom laser
Yvan Castin, Ralph Dum, Emmanuel Mandonnet +2
We investigate the coherence properties of an atomic beam evaporatively cooled in a magnetic guide, assuming thermal equilibrium in the quantum degenerate regime. The gas experienc…
Scissors mode in a superfluid Fermi gas
Anna Minguzzi, Mario P. Tosi
We evaluate the frequencies of scissors modes for density and concentration fluctuations in a vapour of fermionic atoms placed in two hyperfine levels inside a spherical harmonic t…
Output from Bose condensates in tunnel arrays: the role of mean-field interactions and of transverse confinement
M. L. Chiofalo, M. P. Tosi
We present numerical studies of atomic transport in 3D and 1D models for a mode-locked, pulsed atom laser as realized by Anderson and Kasevich [Science 281 (1998) 1686] using an el…
Schematic phase diagram and collective excitations in the collisional regime for trapped boson-fermion mixtures at zero temperature
A. Minguzzi, M. P. Tosi
We discuss the ground state and the small-amplitude excitations of dilute boson-fermion mixtures confined in spherical harmonic traps at , assuming repulsive boson-boson int…
Momentum distribution of an interacting Bose-condensed gas at finite temperature
Anna Minguzzi, Patrizia Vignolo, Mario P. Tosi
We use a semiclassical two-fluid model to study the momentum distribution of a Bose-condensed gas with repulsive interactions inside a harmonic trap at finite temperature, with spe…
Collective excitation frequencies of Bosons in a parabolic potential with interparticle harmonic interactions
A. Minguzzi, M. P. Tosi, N. H. March
The fact that the ground-state first-order density matrix for Bosons in a parabolic potential with interparticle harmonic interactions is known in exact form is here exploited to s…
Collective excitations of a periodic Bose condensate in the Wannier representation
M. L. Chiofalo, M. Polini, M. P. Tosi
We study the dispersion relation of the excitations of a dilute Bose-Einstein condensate confined in a periodic optical potential and its Bloch oscillations in an accelerated frame…