Physics – Condensed Matter – Mesoscale and Nanoscale Physics
Scientific paper
2005-06-22
Physical Review Letters 95 (2005) 190403
Physics
Condensed Matter
Mesoscale and Nanoscale Physics
Scientific paper
10.1103/PhysRevLett.95.190403
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.
Battelier Baptiste
Cheneau Marc
Dalibard Jean
Hadzibabic Zoran
Stock Sabine
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