Robust vortex lines, vortex rings, and hopfions in three-dimensional Bose-Einstein condensates
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States)
- Univ. of Massachusetts, Amherst, MA (United States)
- San Diego State Univ., San Diego, CA (United States)
- Univ. of Athens, Athens (Greece)
- Los Alamos National Lab. (LANL), Los Alamos, NM (United States); Univ. of Massachusetts, Amherst, MA (United States)
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. Moreover, deep in the Thomas-Fermi regime, we investigate the particlelike behavior of vortex rings and hopfions.
- Research Organization:
- Los Alamos National Laboratory (LANL), Los Alamos, NM (United States)
- Sponsoring Organization:
- USDOE
- Grant/Contract Number:
- AC52-06NA25396
- OSTI ID:
- 1334149
- Alternate ID(s):
- OSTI ID: 1228287
- Report Number(s):
- LA-UR-16-21289; PLRAAN
- Journal Information:
- Physical Review A - Atomic, Molecular, and Optical Physics, Vol. 92, Issue 6; ISSN 1050-2947
- Publisher:
- American Physical Society (APS)Copyright Statement
- Country of Publication:
- United States
- Language:
- English
Web of Science
Vortex knots on three-dimensional lattices of nonlinear oscillators coupled by space-varying links
|
journal | July 2019 |
Dynamics of dipoles and vortices in nonlinearly coupled three-dimensional field oscillators
|
journal | July 2016 |
| Dark spherical shell solitons in three-dimensional Bose-Einstein condensates: Existence, stability and dynamics | text | January 2016 |
| Dynamics of dipoles and vortices in nonlinearly-coupled three-dimensional harmonic oscillators | text | January 2016 |
| Single and Multiple Vortex Rings in Three-Dimensional Bose-Einstein Condensates: Existence, Stability and Dynamics | text | January 2017 |
| Vortex knots on three-dimensional lattices of nonlinear oscillators coupled by space-varying links | text | January 2019 |
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