Generation and decay of persistent current in a toroidal Bose-Einstein condensate
Abstract
Persistent current, or "flow without friction", as well as quantum vortices are the hallmarks of superfluidity. Recently a very long-lived persistent flow of atoms has been experimentally observed in Bose-Einstein condensates trapped in a ring-shaped potential. This enables fundamental studies of superfluidity and may lead to applications in high-precision metrology and atomtronics. We overview our recent theoretical studies of the generation of the persistent current in a stirred toroidal atomic Bose-Einstein condensate, and discuss our new investigation of the hysteresis in the atomtronic circuit.
Cite
@article{arxiv.1411.3490,
title = {Generation and decay of persistent current in a toroidal Bose-Einstein condensate},
author = {A. I. Yakimenko and S. I. Vilchinskii and Y. M. Bidasyuk and Y. I. Kuriatnikov and K. O. Isaieva and M. Weyrauch},
journal= {arXiv preprint arXiv:1411.3490},
year = {2015}
}
Comments
16 pages, 12 figures. This review article draws from the papers by the authors: Phys. Rev. A 88, 051602(R) (2013), arXiv:1409.6260, arXiv:1408.3293