Fractional charge and fractional statistics in the quantum Hall effects

DE Feldman, BI Halperin - Reports on Progress in Physics, 2021‏ - iopscience.iop.org
Quasiparticles with fractional charge and fractional statistics are key features of the fractional
quantum Hall effect. We discuss in detail the definitions of fractional charge and statistics …

Colloquium: Quantum heat transport in condensed matter systems

JP Pekola, B Karimi - Reviews of Modern Physics, 2021‏ - APS
In this Colloquium recent advances in the field of quantum heat transport are reviewed. This
topic has been investigated theoretically for several decades, but only during the past 20 …

Observation of ballistic upstream modes at fractional quantum Hall edges of graphene

R Kumar, SK Srivastav, C Spånslätt… - Nature …, 2022‏ - nature.com
The presence of “upstream” modes, moving against the direction of charge current flow in
the fractional quantum Hall (FQH) phases, is critical for the emergence of renormalized …

Absent thermal equilibration on fractional quantum Hall edges over macroscopic scale

RA Melcer, B Dutta, C Spånslätt, J Park… - Nature …, 2022‏ - nature.com
Two-dimensional topological insulators, and in particular quantum Hall states, are
characterized by an insulating bulk and a conducting edge. Fractional states may host both …

Isolated ballistic non-abelian interface channel

B Dutta, V Umansky, M Banerjee, M Heiblum - Science, 2022‏ - science.org
The topological order of a quantum Hall state is mirrored by the gapless edge modes owing
to bulk-edge correspondence. The state at the filling of ν= 5/2, predicted to host non-abelian …

Probing the spin structure of the fractional quantum Hall magnetoroton with polarized Raman scattering

DX Nguyen, DT Son - Physical Review Research, 2021‏ - APS
Starting from the Luttinger model for the band structure of GaAs, we derive an effective
theory that describes the coupling of the fractional quantum Hall (FQH) system with photons …

Stability of the particle-hole Pfaffian state and the -fractional quantum Hall effect

EH Rezayi, K Pakrouski, FDM Haldane - Physical Review B, 2021‏ - APS
We present a method for the exact construction of the fully particle-hole symmetric Pfaffian
(PH-Pfaffian) ground state and its charged excitations on a sphere. We adopt the Moore …

Energy minimization of paired composite fermion wave functions in the spherical geometry

GJ Henderson, G Möller, SH Simon - Physical Review B, 2023‏ - APS
We perform the energy minimization of the paired composite fermion (CF) wave functions,
proposed by Möller and Simon (MS)[Phys. Rev. B 77, 075319 (2008) 1098-0121 …

Emergence of neutral modes in Laughlin-like fractional quantum Hall phases

U Khanna, M Goldstein, Y Gefen - Physical review letters, 2022‏ - APS
Chiral gapless boundary modes are characteristic of quantum Hall (QH) states. For hole-
conjugate fractional QH phases counterpropagating edge modes (upstream and …

Identifying the Topological Order through Charge Transport Measurements

M Yutushui, A Stern, DF Mross - Physical review letters, 2022‏ - APS
We propose an experiment to identify the topological order of the ν= 5 2 state through a
measurement of the electric conductance of a mesoscopic device. Our setup is based on …