Decay routes of Monopole Textures in spin-1 and spin-2 condensates.
ORAL
Abstract
The dynamical evolution of spin-1 and spin-2 Bose-Einstein condensates provides a novel way to understand topological phenomena in macroscopic quantum systems. We determine dynamical decaying routes of imprinted monopole defects within the polar phase (spin-1) and uniaxial nematic phase (spin-2). By numerically solving Gross-Pitaevskii equations under experimental conditions, we find that the monopole decay into a robust
vortex ring structure and low-energy excitations. In particular spin-1 condensates shows the presence of an `Alice ring` in early stages of the decay process. Finally, we conclude that studying the decay mechanism of non-trivial spin textures is an intriguing test of the underlying symmetry of spin Bose-Einstein condensates.
vortex ring structure and low-energy excitations. In particular spin-1 condensates shows the presence of an `Alice ring` in early stages of the decay process. Finally, we conclude that studying the decay mechanism of non-trivial spin textures is an intriguing test of the underlying symmetry of spin Bose-Einstein condensates.
*We thank Academy of Finland through its Centres of Excellence Programme (project numbers 312300, 312059 and 312295) and grants (numbers 314447, 314448, 314449,305237, 316551, 308161, 335460, and 314302). We have received funding from the European Research Council under Consolidator Grant number 681311 (QUESS). And to the National Science Foundation grant NSF PHY-1806318.
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Presenters
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Roberto Zamora-Zamora
- QCD Labs, Department of Applied Physics, Aalto University