Search Results - "PEDRI, P"
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Two-dimensional bright solitons in dipolar Bose-Einstein condensates
Published in Physical review letters (11-11-2005)“…We analyze the physics of bright solitons in 2D dipolar Bose-Einstein condensates. These solitons, which are not possible in short-range interacting gases,…”
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2
Nonequilibrium quantum magnetism in a dipolar lattice gas
Published in Physical review letters (01-11-2013)“…We report on the realization of quantum magnetism using a degenerate dipolar gas in an optical lattice. Our system implements a lattice model resembling the…”
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3
Anisotropic excitation spectrum of a dipolar quantum Bose gas
Published in Physical review letters (09-10-2012)“…We measure the excitation spectrum of a dipolar chromium Bose-Einstein condensate with Raman-Bragg spectroscopy. The energy spectrum depends on the orientation…”
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4
Observation of dipole-dipole interaction in a degenerate quantum gas
Published in Physical review letters (07-10-2005)“…We have investigated the expansion of a Bose-Einstein condensate of strongly magnetic chromium atoms. The long-range and anisotropic magnetic dipole-dipole…”
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5
Spontaneous demagnetization of a dipolar spinor Bose gas in an ultralow magnetic field
Published in Physical review letters (24-06-2011)“…We study the spinor properties of S = 3 (52)Cr condensates, in which dipole-dipole interactions allow changes in magnetization. We observe a demagnetization of…”
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6
Phonon instability with respect to soliton formation in two-dimensional dipolar Bose-Einstein condensates
Published in Physical review letters (06-02-2009)“…The partially attractive character of the dipole-dipole interaction leads to phonon instability in dipolar Bose-Einstein condensates, which is followed by…”
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7
Collective Spin Modes of a Trapped Quantum Ferrofluid
Published in Physical review letters (06-07-2018)“…We report on the observation of a collective spin mode in a spinor Bose-Einstein condensate. Initially, all spins point perpendicular to the external magnetic…”
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8
Dissipative cooling of spin chains by a bath of dipolar particles
Published in New journal of physics (19-07-2018)“…We consider a spin chain of fermionic atoms in an optical lattice, interacting with each other by super-exchange interactions. We theoretically investigate the…”
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9
Collective excitations of a dipolar Bose-Einstein condensate
Published in Physical review letters (23-07-2010)“…We have measured the effect of dipole-dipole interactions on the frequency of a collective mode of a Bose-Einstein condensate. At relatively large numbers of…”
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10
Expansion of an interacting fermi gas
Published in Physical review letters (16-12-2002)“…We study the expansion of a dilute ultracold sample of fermions initially trapped in an anisotropic harmonic trap. The expansion of the cloud provides valuable…”
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11
Spin relaxation and band excitation of a dipolar Bose-Einstein condensate in 2D optical lattices
Published in Physical review letters (07-01-2011)“…We observe interband transitions mediated by dipole-dipole interactions for an array of 1D quantum gases of chromium atoms, trapped in a 2D optical lattice…”
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12
Probing spin dynamics from the Mott insulating to the superfluid regime in a dipolar lattice gas
Published in Physical review. A, Atomic, molecular, and optical physics (02-02-2016)“…We analyze the spin dynamics of an out-of-equilibrium large spin dipolar atomic Bose gas in anoptical lattice. We observe a smooth crossover from a complex…”
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13
Stability of dark solitons in three dimensional dipolar Bose-Einstein condensates
Published in Physical review letters (21-11-2008)“…The dynamical stability of dark solitons in dipolar Bose-Einstein condensates is studied. For standard short-range interacting condensates, dark solitons are…”
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14
Cooling of a Bose-Einstein Condensate by Spin Distillation
Published in Physical review letters (11-12-2015)“…We propose and experimentally demonstrate a new cooling mechanism leading to purification of a Bose-Einstein condensate (BEC). Our scheme starts with a BEC…”
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15
Expansion of a coherent array of Bose-Einstein condensates
Published in Physical review letters (26-11-2001)“…We investigate the properties of a coherent array containing about 200 Bose-Einstein condensates produced in a far detuned 1D optical lattice. The density…”
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16
Transverse instability of straight vortex lines in dipolar Bose-Einstein condensates
Published in Physical review letters (20-06-2008)“…The physics of vortex lines in dipolar condensates is studied. Because of the nonlocality of the dipolar interaction, the 3D character of the vortex plays a…”
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17
Luttinger hydrodynamics of confined one-dimensional Bose gases with dipolar interactions
Published in New journal of physics (30-04-2008)“…Ultracold bosonic and fermionic quantum gases confined to quasi-one-dimensional (1D) geometry are promising candidates for probing fundamental concepts of…”
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18
Critical rotation of an annular superfluid Bose-Einstein condensate
Published in Physical review. A, Atomic, molecular, and optical physics (12-07-2012)Get full text
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19
Three-dimensional quasi-Tonks gas in a harmonic trap
Published in Physical review letters (12-09-2003)“…We analyze the macroscopic dynamics of a Bose gas in a harmonic trap with a superimposed two-dimensional optical lattice, assuming a weak coupling between…”
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20
Health evaluation in the native Garfagnina goat
Published in Small ruminant research (01-05-2012)“…A goat population named Garfagnina, from north-west Tuscany (Italy), was studied in order to evaluate the health status in an estimated population of 2500…”
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