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

Sabine Stock·Zoran Hadzibabic·Baptiste Battelier·Marc Cheneau·Jean Dalibard
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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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Sabine Stock, Zoran Hadzibabic, Baptiste Battelier, Marc Cheneau, Jean Dalibard. 2005-11-13. Observation of Phase Defects in Quasi-2D Bose-Einstein Condensates. https://doi.org/10.1103/physrevlett.95.190403

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