Controlled creation of three-dimensional vortex structures in Bose--Einstein condensates using artificial magnetic fields
| Autor: | Rashi Sachdeva, Thomas Busch, Peter S. Barnett, James Schloss |
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| Rok vydání: | 2019 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Quantum Physics Condensed matter physics Condensed Matter::Other Fluid Dynamics (physics.flu-dyn) FOS: Physical sciences Physics - Fluid Dynamics 01 natural sciences Measure (mathematics) 010305 fluids & plasmas law.invention Vortex Vortex ring Magnetic field Superfluidity law Quantum Gases (cond-mat.quant-gas) Condensed Matter::Superconductivity 0103 physical sciences 010306 general physics Condensed Matter - Quantum Gases Quantum Physics (quant-ph) Bose–Einstein condensate |
| DOI: | 10.48550/arxiv.1910.02364 |
| Popis: | The physics of quantized vortex excitations in atomic Bose-Einstein condensates has been extensively studied in recent years.Although simple vortex lines are relatively easy to create, control, and measure in experiments, it is a lot more difficult to do the same for vortex ring structures.Here we suggest and explore a method for generating and controlling superfluid vortex rings, vortex ring lattices, and other three dimensional vortex structures in toroidally-trapped superfluid Bose--Einstein condensates by using the artificial magnetic field produced by an optical nanofiber.The presence of the fiber also necessitates a multiply-connected geometry and we show that in this situation the presence of these vortex structures can be deduced from exciting the scissors mode of the condensate. Comment: 8 pages, 6 figures |
| Databáze: | OpenAIRE |
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