Multiply connected Bose-Einstein-condensed alkali-metal gases: Current-carrying states and their decay
- 1 March 1998
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review A
- Vol. 57 (3) , R1505-R1508
- https://doi.org/10.1103/physreva.57.r1505
Abstract
The ability to support metastable current-carrying states in multiply connected settings is one of the prime signatures of superfluidity. Such states are investigated theoretically for the case of trapped Bose condensed alkali-metal gases, particularly with regard to the rate at which they decay via thermal fluctuations. The lifetimes of metastable currents can be either longer or shorter than experimental time scales. A scheme for the experimental detection of metastable states is sketched.Keywords
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