Skyrmion ground states of rapidly rotating few-fermion systems
We show that ultracold fermions in an artificial magnetic field open up a new window to the physics of the spinful fractional quantum Hall (FQH) effect. We numerically study the lowest energy states of strongly interacting few-fermion systems in rapidly rotating optical microtraps. We find that skyr...
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| Main Authors: | , , |
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| Format: | Article (Journal) |
| Language: | English |
| Published: |
13 August 2020
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| In: |
New journal of physics
Year: 2020, Volume: 22, Issue: 8 |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/aba30e |
| Online Access: | Verlag, lizenzpflichtig, Volltext: https://doi.org/10.1088/1367-2630/aba30e
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| Author Notes: | L. Palm, F. Grusdt and P.M. Preiss |
| Summary: | We show that ultracold fermions in an artificial magnetic field open up a new window to the physics of the spinful fractional quantum Hall (FQH) effect. We numerically study the lowest energy states of strongly interacting few-fermion systems in rapidly rotating optical microtraps. We find that skyrmion-like ground states with locally ferromagnetic, long-range spin textures emerge. To realize such states experimentally, rotating microtraps with higher-order angular momentum components may be used to prepare fermionic particles in a lowest Landau level. We find parameter regimes in which skyrmion-like ground states should be accessible in current experiments and demonstrate an adiabatic pathway for their preparation in a rapidly rotating harmonic trap. The addition of long range interactions will lead to an even richer interplay between spin textures and FQH physics. |
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| Item Description: | Gesehen am 24.09.2020 |
| Physical Description: | Online Resource |
| ISSN: | 1367-2630 |
| DOI: | 10.1088/1367-2630/aba30e |