Vortex molecules in Bose-Einstein condensates
| Title: | Vortex molecules in Bose-Einstein condensates |
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| Authors: | Nitta, Muneto, Eto, Minoru, Cipriani, Mattia |
| Source: | J.Low Temp.Phys.175:177-188,2014 |
| Publication Year: | 2013 |
| Collection: | Condensed Matter High Energy Physics - Phenomenology |
| Subject Terms: | Condensed Matter - Quantum Gases, High Energy Physics - Phenomenology |
| More Details: | Stable vortex dimers are known to exist in coherently coupled two component Bose-Einstein condensates (BECs). We construct stable vortex trimers in three component BECs and find that the shape can be controlled by changing the internal coherent (Rabi) couplings. Stable vortex N-omers are also constructed in coherently coupled N-component BECs. We classify all possible N-omers in terms of the mathematical graph theory. Next, we study effects of the Rabi coupling in vortex lattices in two-component BECs. We find how the vortex lattices without the Rabi coupling known before are connected to the Abrikosov lattice of integer vortices with increasing the Rabi coupling. In this process, vortex dimers change their partners in various ways at large couplings. We then find that the Abrikosov lattices are robust in three-component BECs. Comment: 12 pages, 9 figures, prepared for the conference proceedings of QFS2013 (International Symposium on Quantum Fluids and Solids) |
| Document Type: | Working Paper |
| DOI: | 10.1007/s10909-013-0925-3 |
| Access URL: | http://arxiv.org/abs/1307.4312 |
| Accession Number: | edsarx.1307.4312 |
| Database: | arXiv |
| DOI: | 10.1007/s10909-013-0925-3 |
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