Topological phases and circulating states of Bose-Einstein condensates
- 1 January 1999
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 59 (1) , 639-642
- https://doi.org/10.1103/physreva.59.639
Abstract
We show that the quantum topological effect predicted by Aharonov and Casher (AC effect) [Phys. Rev. Lett. 53, 319 (1984)] may be used to create circulating states of magnetically trapped atomic Bose-Einstein condensates (BECs). A simple experimental setup is suggested based on a multiply connected geometry such as a toroidal trap or a magnetic trap pinched by a blue-detuned laser. We give numerical estimates of such effects within the current atomic BEC experiments, and point out some interesting properties of the associated quantized circulating states.Keywords
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