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Robust vortex lines, vortex rings, and hopfions in three-dimensional Bose-Einstein condensates.
- Source :
-
Physical Review A: Atomic, Molecular & Optical Physics . Dec2015, Vol. 92 Issue 6-B, p1-7. 7p. - Publication Year :
- 2015
-
Abstract
- Performing a systematic Bogoliubov-de Gennes spectral analysis, we illustrate that stationary vortex lines, vortex rings, and more exotic states, such as hopfions, are robust in three-dimensional atomic Bose-Einstein condensates, for large parameter intervals. Importantly, we find that the hopfion can be stabilized in a simple parabolic trap, without the need for trap rotation or inhomogeneous interactions. We supplement our spectral analysis by studying the dynamics of such stationary states; we find them to be robust against significant perturbations of the initial state. In the unstable regimes, we not only identify the unstable mode, such as a quadrupolar or hexapolar mode, but we also observe the corresponding instability dynamics. Furthermore, deep in the Thomas-Fermi regime, we investigate the particlelike behavior of vortex rings and hopfions. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 10502947
- Volume :
- 92
- Issue :
- 6-B
- Database :
- Academic Search Index
- Journal :
- Physical Review A: Atomic, Molecular & Optical Physics
- Publication Type :
- Periodical
- Accession number :
- 112468313
- Full Text :
- https://doi.org/10.1103/PhysRevA.92.063611