Next-level composite fermions

TL;DR

This paper explains the complex fractional quantum Hall states observed in graphene double layers by introducing a model of two-component composite fermions that incorporate both intra- and inter-layer vortices.

Contribution

It proposes a novel two-component composite fermion framework to explain the fractional quantum Hall states in graphene double layers.

Findings

Successful explanation of fractional quantum Hall states in graphene double layers.

Introduction of intra- and inter-layer vortices in the composite fermion model.

Provides a unified understanding of observed quantum Hall patterns.

Abstract

A rich pattern of fractional quantum Hall states in graphene double layers can be naturally explained in terms of two-component composite fermions carrying both intra- and inter-layer vortices.