Exploring phase coherence in a 2D lattice of Bose-Einstein condensates

Abstract

Bose-Einstein condensates of rubidium atoms are stored in a two-dimensional periodic dipole force potential, formed by a pair of standing wave laser fields. The resulting potential consists of a lattice of tightly confining tubes, each filled with a 1D quantum gas. Tunnel-coupling between neighboring tubes is controlled by the intensity of the laser fields. By observing the interference pattern of atoms released from more than 3000 individual lattice tubes the phase coherence of the coupled quantum gases is studied. The lifetime of the condensate in the lattice and the dependence of the interference pattern on the lattice configuration are investigated.

4 pages, 6 figures

Cited by in corpus (444)

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• Visibility of ultra-cold Bose system in triangular optical lattices
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• How to characterize the dynamics of cold atoms in non dissipative optical lattices?
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• Atomic Ramsey interferometry with S- and D-band in a triangular optical lattice
• Dynamics of spatial phase coherence in a dissipative Bose-Hubbard atomic system
• Superfluid to Mott-insulator transition in an anizotropic two--dimensional optical lattice
• How creating one additional well can generate Bose-Einstein condensation
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• Reentrant transition of bosons in a quasiperiodic potential
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• Loading ultracold atoms onto nonlinear Bloch states and soliton states in bichromatic lattices
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• Gradient corrections to the local density approximation in the one-dimensional Bose gas
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• Simulating the Palmer-Chalker state in an orbital superfluid
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• Time-of-flight imaging method to observe signatures of antiferromagnetically ordered states of fermionic atoms in an optical lattice
• Quasi-superfluid and Quasi-Mott phases of strongly interacting bosons in shallow optical lattice
• Spinor Bose gas in an elongated trap
• Out-of-equilibrium quantum thermochemical engine with one-dimensional Bose gas
• Effects of nonintegrability on stabilization of Feshbach molecules in atom waveguides
• Bardeen-Cooper-Schrieffer State Representation and Pairing in the Fermionic Tonks-Girardeau Gas
• Quantum Hall states for $\alpha =1/3$ in optical lattices
• Faddeev equations in one-dimensional problems with resonant interactions
• Theoretical Analysis on Spectroscopy of Atomic Bose-Hubbard Systems
• Deconfinement and phase diagram of bosons in a linear optical lattice with a particle reservoir
• Bloch oscillations sustained by nonlinearity
• Cold Atoms in Driven Optical Lattices
• Collective modes of trapped spinor Bose condensates
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• Exact solutions of a one-dimensional mixture of spinor bosons and spinor fermions
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