Observation of Phase Defects in Quasi-2D Bose-Einstein Condensates

Abstract

We have observed phase defects in quasi-2D Bose-Einstein condensates close to the condensation temperature. Either a single or several equally spaced condensates are produced by selectively evaporating the sites of a 1D optical lattice. When several clouds are released from the lattice and allowed to overlap, dislocation lines in the interference patterns reveal nontrivial phase defects.

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Cited by in corpus (88)

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• Critical Point of an Interacting Two-Dimensional Atomic Bose Gas
• A ring trap for ultracold atoms
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• Thermal activation of vortex-antivortex pairs in quasi-2D Bose-Einstein condensates
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• Phase Diagram of Cold Polarized Fermi Gas in Two Dimensions
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• On the rigorous derivation of the 2D cubic nonlinear Schrödinger equation from 3D quantum many-body dynamics
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• Superfluidity and collective modes in Rashba spin-orbit coupled Fermi gases
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• Phase coherence in quasicondensate experiments: an ab initio analysis via the stochastic Gross-Pitaevskii equation
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• Distortion of Interference Fringes and the Resulting Vortex Production of Merging Bose-Einstein Condensates
• Correlation Effects in Ultracold Two-Dimensional Bose Gases
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• Quantitative test of mean-field description of a trapped two-dimensional Bose gas
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• Error-correcting one-way quantum computation with global entangling gates
• Thermodynamically activated vortex-dipole formation in a two-dimensional Bose-Einstein condensate
• Spontaneous creation of non-zero angular momentum modes in tunnel-coupled two-dimensional degenerate Bose gases
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• Two-dimensional boson-fermion mixtures
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• Anomalous superfluidity in 2+1 dimensional two-color lattice QCD
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• Periodic quenches across the Berezinskii-Kosterlitz-Thouless phase transition
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