Stable Hopf solitons in rotating Bose-Einstein condensates
| Autor: | Y. M. Bidasyuk, Alexander Yakimenko, A. V. Chumachenko, Michael Weyrauch, S. I. Vilchinskii, O. O. Prikhodko |
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| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Physics
Condensed Matter::Quantum Gases Toroid Structure (category theory) FOS: Physical sciences Stability (probability) Atomic and Molecular Physics and Optics Vortex law.invention Superfluidity Classical mechanics Flow (mathematics) Quantum Gases (cond-mat.quant-gas) law Quantum mechanics Dissipative system Condensed Matter - Quantum Gases Bose–Einstein condensate |
| Popis: | We reveal that Hopf solitons can be stabilized in rotating atomic Bose-Einstein condensate. The Hopfion is a matter-wave vortex complex which carries two independent winding numbers. Such a topological solitonic structure results from a superfluid flow of atoms simultaneously quantized in poloidal and toroidal directions. In the framework of a dissipative mean-field model we observe different unstable evolution scenarios of the Hopfions. We demonstrate energetic and dynamical stability of the Hopf solitons under experimentally feasible conditions. 5 pages, 10 figures |
| Databáze: | OpenAIRE |
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