Identification of topological order in the fractional quantum Hall state at nu=1/4

Article

关键词: THERMAL TRANSPORT;    QUANTIZATION;    TRANSITION;    HIERARCHY;    SYMMETRY;    ANYONS;   

DOI  :  10.1103/PhysRevB.100.205306

来源: SCIE

【 摘 要 】

The nature of the fractional quantum Hall state at quarter filling in a wide quantum well is still under debate. Both one-component non-Abelian and two-component Abelian orders have been proposed to describe the system. Interestingly, these candidates received support from different experiments under disparate conditions. In this article, we focus on non-Abelian orders from Cooper pairing between composite fermions and the Abelian Halperin-(5,5,3) order. We discuss and predict systematically different experimental signatures to identify them in future experiments. In particular, we address the Mach-Zehnder interferometry experiment and show that it can identify the recently proposed 22111 parton order.

【 授权许可】

Free