Dynamics of a Bose-Einstein condensate at finite temperature in an atomoptical coherence filter

Abstract

The macroscopic coherent tunneling through the barriers of a periodic potential is used as an atomoptical filter to separate the condensate and the thermal components of a ${}^{87}$Rb mixed cloud. We condense in the combined potential of a laser standing-wave superimposed on the axis of a cigar-shape magnetic trap and induce condensate dipole oscillation in the presence of a static thermal component. The oscillation is damped due to interaction with the thermal fraction and we investigate the role played by the periodic potential in the damping process.

4 pages, 4 figures

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• Phase-slip induced dissipation in an atomic Bose-Hubbard system
• Dissipative quantum dynamics of bosonic atoms in a shallow 1D optical lattice
• Lattice Thermodynamics for Ultra-Cold Atoms
• Two-component gap solitons in two- and one-dimensional Bose-Einstein condensates
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• Quantum Kinetic Theory of BEC Lattice Gas:Boltzmann Equations from 2PI-CTP Effective Action
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• Resource Letter BEC-1: Bose-Einstein Condensates in Trapped Dilute Gases
• Damping of Condensate Oscillation of a Trapped Bose Gas in a One-Dimensional Optical Lattice at Finite Temperatures
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• Non-equilibrium Atomic Condensates and Mixtures: Collective Modes, Condensate Growth and Thermalization
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• Coarse-Grained Finite-Temperature Theory for the Condensate in Optical Lattices
• Superfluidity and collective oscillations of trapped Bose-Einstein condensates in a periodical potential
• Damping of Confined Excitations Modes of 1D Condensates in an Optical Lattice
• Bose-Condensed Gases in a 1D Optical Lattice at Finite Temperatures
• Hydrodynamics of Superfluid Bose Gases in an Optical Lattice at Finite Temperatures
• One-dimensional matter waves as a multi-state bit