Search Results - "Dalfovo, F."
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Dynamics and Interaction of Vortex Lines in an Elongated Bose-Einstein Condensate
Published in Physical review letters (23-10-2015)“…We study the real-time dynamics of vortices in a large elongated Bose-Einstein condensate (BEC) of sodium atoms using a stroboscopic technique. Vortices are…”
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Observation of subdiffusion in a disordered interacting system
Published in Physical review letters (10-06-2011)“…We study the transport dynamics of matter-waves in the presence of disorder and nonlinearity. An atomic Bose-Einstein condensate that is localized in a…”
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Dynamics of dark solitons in a trapped superfluid fermi gas
Published in Physical review letters (06-05-2011)“…We study soliton oscillations in a trapped superfluid Fermi gas across the Bose-Einstein condensate to Bardeen-Cooper-Schrieffer (BEC-BCS) crossover. We derive…”
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Dynamical equilibration across a quenched phase transition in a trapped quantum gas
Published in Communications physics (11-06-2018)“…The formation of an equilibrium state from an uncorrelated thermal one through the dynamical crossing of a phase transition is a central question of quantum…”
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Subdiffusion of nonlinear waves in quasiperiodic potentials
Published in New journal of physics (23-10-2012)“…We study the time evolution of wave packets in one-dimensional quasiperiodic lattices which localize linear waves. Nonlinearity (related to two-body…”
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Phase transition dimensionality crossover from two to three dimensions in a trapped ultracold atomic Bose gas
Published in Physical review research (01-08-2022)“…The equilibrium properties of a weakly interacting atomic Bose gas across the Berezinskii-Kosterlitz-Thouless (BKT) and Bose-Einstein condensation (BEC) phase…”
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Optical Visibility and Core Structure of Vortex Filaments in a Bosonic Superfluid
Published in Journal of experimental and theoretical physics (01-11-2018)“…We use optical images of a superfluid consisting of a weakly interacting Bose–Einstein condensate of sodium atoms to investigate the structure of quantized…”
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The decay and collisions of dark solitons in superfluid Fermi gases
Published in New journal of physics (20-02-2012)“…We study soliton collisions and the decay of solitons into sound in superfluid Fermi gases across the Bose-Einstein condensate to Bardeen-Cooper-Schrieffer…”
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Dynamical Response of a Bose-Einstein Condensate to a Discontinuous Change in Internal State
Published in Physical review letters (13-07-1998)Get full text
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Bragg spectroscopy of the multibranch Bogoliubov spectrum of elongated Bose-Einstein condensates
Published in Physical review letters (14-02-2003)“…We measure the response of an elongated Bose-Einstein condensate to a two-photon Bragg pulse. If the duration of the pulse is long, the total momentum…”
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Bogoliubov spectrum and Bragg spectroscopy of elongated Bose-Einstein condensates
Published in New journal of physics (30-05-2003)Get full text
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Rapid ramps across the BEC-BCS crossover: A route to measuring the superfluid gap
Published in Physical review. A, Atomic, molecular, and optical physics (07-11-2012)Get full text
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How to measure the bogoliubov quasiparticle amplitudes in a trapped condensate
Published in Physical review letters (20-11-2000)“…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…”
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High sensitivity phonon spectroscopy of Bose-Einstein condensates using matter-wave interference
Published in Physical review letters (26-11-2004)“…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…”
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Nonlinear dynamics of a Bose condensed gas
Published in Physics letters. A (17-03-1997)“…We investigate the dynamic behavior of a Bose-condensed gas of alkali atoms interacting with repulsive forces and confined in a magnetic trap at zero…”
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Stability and Excitations of Solitons in 2D Bose-Einstein Condensates
Published in Journal of low temperature physics (01-08-2007)“…The small oscillations of solitons in 2D Bose-Einstein condensates are investigated by solving the Kadomtsev-Petviashvili equation which is valid when the…”
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Bosons in anisotropic traps: Ground state and vortices
Published in Physical review. A, Atomic, molecular, and optical physics (01-04-1996)Get full text
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Critical velocity of superfluid flow through single-barrier and periodic potentials
Published in Physical review. A, Atomic, molecular, and optical physics (03-11-2009)Get full text
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Parametric excitation of a Bose-Einstein condensate in a one-dimensional optical lattice
Published in Physical review. A, Atomic, molecular, and optical physics (01-06-2005)“…We study the response of a Bose-Einstein condensate to a periodic modulation of the depth of an optical lattice. Using Gross-Pitaevskii theory, we show that a…”
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