Output coupling and flow of a dilute Bose-Einstein condensate

Abstract

We solve the Gross-Pitaevskii equation to model the behaviour of a weakly-interacting Bose condensate. Solutions are presented for the eigenstates in one- and two-dimensional harmonic traps. We include the effect of gravity and coupling to a second condensate to simulate an output coupler for Bose condensed atoms, and find that the output pulse shape is in qualitative agreement with experiment. We also model flow under gravity through a constriction, demonstrating excitation and separation of eigenmodes in the condensate.

10 pages, 6 figures, REVTeX. Revised version, to appear in J. Phys. B

References in corpus (5)

• Collective excitations of a trapped Bose-condensed gas
• Collective excitations of atomic Bose-Einstein condensates
• Collective excitations of Bose-Einstein condensed gases at finite temperatures
• Microscopic Treatment of Binary Interactions in the Non-Equilibrium Dynamics of Partially Bose-condensed Trapped Gases
• Output of a pulsed atom laser

Cited by in corpus (25)

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• Collective oscillations of two colliding Bose-Einstein condensates
• Collective dynamics and expansion of a Bose-Einstein condensate in a random potential
• Spectral method for the time-dependent Gross-Pitaevskii equation with a harmonic trap
• Fourth-Order Algorithms for Solving the Imaginary Time Gross-Pitaevskii Equation in a Rotating Anisotropic Trap
• Quasi-continuous atom laser in the presence of gravity
• Dimensional crossover in the superfluid-supersolid quantum phase transition
• Direct observation of irrotational flow and evidence of superfluidity in a rotating Bose-Einstein condensate
• 1D model for the dynamics and expansion of elongated Bose-Einstein condensates
• Josephson plasma oscillations and the Gross-Pitaevskii equation: Bogoliubov approach vs two-mode model
• Dynamics of two colliding Bose-Einstein condensates in an elongated magneto-static trap
• Dual-species Bose-Einstein condensate of 41K and 87Rb in a hybrid trap
• Dynamical formation of multiple quantum droplets in a Bose-Bose mixture
• Adiabatic Output Coupling of a Bose Gas at Finite Temperatures
• Vortex Rings and Mutual Drag in Trapped Bose-Einstein Condensates
• Loss and revival of phase coherence in a Bose-Einstein condensate moving through an optical lattice
• Effect of interactions in the interference pattern of Bose Einstein condensates
• Anomalous Bloch oscillations in one dimensional parity-breaking periodic potentials
• Non-Markovian dynamics in atom-laser outcoupling from a double-well Bose-Einstein condensate
• Crossing the superfluid-supersolid transition of an elongated dipolar condensate
• The Theory of Atom Lasers
• Effects of interatomic collisions on atom laser outcoupling
• Dipole modes of a trapped bosonic mixture: Fate of the sum-rule approach
• The validity of the Landau-Zener model for output coupling of Bose condensates
• Energy and momentum transfer in one-dimensional trapped gases by stimulated light scattering