Huang Haoyun, Hussain Waseem, Myers S A, Pfeiffer L N, West K W, Baldwin K W, Csáthy G A
Department of Physics and Astronomy, Purdue University, West Lafayette, IN, 47907, USA.
Department of Electrical Engineering, Princeton University, Princeton, NJ, 08544, USA.
Nat Commun. 2024 Feb 17;15(1):1461. doi: 10.1038/s41467-024-45860-5.
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.
复合费米子理论通过涌现粒子的形成，为理解多体关联开启了新篇章。双通量和四通量复合费米子的形成已得到充分证实。虽然与六通量复合费米子形成相关的数据有限，但与之相关的拓扑保护却明显缺失。在此，我们报告了在填充因子ν = 9/11时形成量子化且有能隙的分数量子霍尔态的证据，我们将其与六通量复合费米子的形成联系起来。我们的结果为具有六个通量的最复杂复合费米子提供了证据，并以一个无法用其他已知成员中存在的关联来表征的新成员，扩展了已经多样的高度关联拓扑相家族。我们的观察为分数量子霍尔 regime 中高阶关联的研究铺平了道路。
Zotero 插件
