Composite fermion theory of exotic fractional quantum Hall effect

JK Jain - Annu. Rev. Condens. Matter Phys., 2015‏ - annualreviews.org
The fractional quantum Hall effect (FQHE) arises from strong correlations between electrons
when they are confined to two dimensions and exposed to a strong magnetic field. The …

Nature of composite fermions and the role of particle-hole symmetry: A microscopic account

AC Balram, JK Jain - Physical Review B, 2016‏ - APS
Motivated by the issue of particle-hole symmetry for the composite fermion Fermi sea at the
half-filled Landau level, Son has made an intriguing proposal [Phys. Rev. X 5, 031027 …

Quantitative transport measurements of fractional quantum Hall energy gaps in edgeless graphene devices

H Polshyn, H Zhou, EM Spanton, T Taniguchi… - Physical Review Letters, 2018‏ - APS
Owing to their wide tunability, multiple internal degrees of freedom, and low disorder,
graphene heterostructures are emerging as a promising experimental platform for fractional …

Collective Charge Excitations between Moiré Minibands in Twisted Bilayers Probed with Resonant Inelastic Light Scattering

N Saigal, L Klebl, H Lambers, S Bahmanyar, V Antić… - Physical Review Letters, 2024‏ - APS
We establish low-temperature resonant inelastic light scattering (RILS) spectroscopy as a
tool to probe the formation of a series of moiré bands in twisted WSe 2 bilayers by accessing …

Strong-magnetic-field magnon transport in monolayer graphene

H Zhou, C Huang, N Wei, T Taniguchi, K Watanabe… - Physical Review X, 2022‏ - APS
At high magnetic fields, monolayer graphene hosts competing phases distinguished by their
breaking of the approximate SU (4) isospin symmetry. Recent experiments have observed …

Spontaneous polarization of composite fermions in the Landau level of graphene

AC Balram, C Tőke, A Wójs, JK Jain - Physical Review B, 2015‏ - APS
Motivated by recent experiments that reveal expansive fractional quantum Hall states in the
n= 1 graphene Landau level and suggest a nontrivial role of the spin degree of freedom [F …

Phase diagram of fractional quantum Hall effect of composite fermions in multicomponent systems

AC Balram, C Tőke, A Wójs, JK Jain - Physical review B, 2015‏ - APS
While the integer quantum Hall effect of composite fermions manifests as the prominent
fractional quantum Hall effect (FQHE) of electrons, the FQHE of composite fermions …

Resonant Inelastic Light Scattering Investigation of Low-Lying Gapped Excitations<? format?> in the Quantum Fluid at ν<? format?>=<? format?> 5/2

U Wurstbauer, KW West, LN Pfeiffer, A Pinczuk - Physical review letters, 2013‏ - APS
The low-lying neutral excitation spectrum of the incompressible quantum Hall fluid at ν= 5/2
is investigated by inelastic light scattering. Gapped modes are observable only in a very …

A note contrasting two microscopic theories of the fractional quantum Hall effect

JK Jain - Indian Journal of Physics, 2014‏ - Springer
Two microscopic theories have been proposed for the explanation of the fractional quantum
Hall effect, namely the Haldane–Halperin hierarchy theory and the composite fermion …

Thirty years of composite fermions and beyond

JK Jain - Fractional Quantum Hall Effects: New Developments, 2020‏ - World Scientific
This chapter begins with a primer on composite fermions, and then reviews three directions
that have recently been pursued. It reports on theoretical calculations making detailed …