Evidence for Topological Protection Derived from Six-Flux Composite Fermions.

Autor: Huang H; Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA., Hussain W; Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA., Myers SA; Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA., Pfeiffer LN; Department of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA., West KW; Department of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA., Baldwin KW; Department of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA., Csáthy GA; Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA. gcsathy@purdue.edu.
Jazyk: angličtina
Zdroj: Nature communications [Nat Commun] 2024 Feb 17; Vol. 15 (1), pp. 1461. Date of Electronic Publication: 2024 Feb 17.
DOI: 10.1038/s41467-024-45860-5
Abstrakt: The composite fermion theory opened a new chapter in understanding many-body correlations through the formation of emergent particles. The formation of two-flux and four-flux composite fermions is well established. While there are limited data linked to the formation of six-flux composite fermions, topological protection associated with them is conspicuously lacking. Here we report evidence for the formation of a quantized and gapped fractional quantum Hall state at the filling factor ν = 9/11, which we associate with the formation of six-flux composite fermions. Our result provides evidence for the most intricate composite fermion with six fluxes and expands the already diverse family of highly correlated topological phases with a new member that cannot be characterized by correlations present in other known members. Our observations pave the way towards the study of higher order correlations in the fractional quantum Hall regime.
(© 2024. The Author(s).)
Databáze: MEDLINE
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