Evidence for chiral supercurrent in quantum Hall Josephson junctions

H Vignaud, D Perconte, W Yang, B Kousar, E Wagner… - Nature, 2023 - nature.com
Hybridizing superconductivity with the quantum Hall (QH) effect has notable potential for
designing circuits capable of inducing and manipulating non-Abelian states for topological …

Induced superconducting pairing in integer quantum Hall edge states

M Hatefipour, JJ Cuozzo, J Kanter, WM Strickland… - Nano Letters, 2022 - ACS Publications
Indium arsenide (InAs) near surface quantum wells (QWs) are promising for the fabrication
of semiconductor–superconductor heterostructures given that they allow for a strong …

Loss and decoherence at the quantum Hall-superconductor interface

L Zhao, Z Iftikhar, TFQ Larson, EG Arnault… - Physical Review Letters, 2023 - APS
We perform a systematic study of Andreev conversion at the interface between a
superconductor and graphene in the quantum Hall (QH) regime. We find that the probability …

Induced superconducting correlations in a quantum anomalous Hall insulator

A Uday, G Lippertz, K Moors, HF Legg, R Joris… - Nature Physics, 2024 - nature.com
Thin films of ferromagnetic topological insulator materials can host the quantum anomalous
Hall effect without the need for an external magnetic field. Inducing Cooper pairing in such a …

Signatures of triplet superconductivity in chiral Andreev states

L Arrachea, AL Yeyati, CA Balseiro - Physical Review B, 2024 - APS
We study the behavior of the conductance and the current noise in three-terminal
configurations of edge modes of a quantum Hall system in the ν= 2 filling factor with normal …

Criticality in the crossed Andreev reflection of a quantum Hall edge

VD Kurilovich, LI Glazman - Physical Review X, 2023 - APS
We develop a theory of the nonlocal transport of two counterpropagating ν= 1 quantum Hall
edges coupled via a narrow disordered superconductor. Contrary to the predictions …

Anomalous Periodicity and Majorana Zero Modes in Chiral Josephson Junctions

ZT Sun, JX Hu, YM Xie, KT Law - Physical Review Letters, 2024 - APS
Recent experiments reported that quantum Hall chiral edge state-mediated Josephson
junctions (chiral Josephson junctions) could exhibit Fraunhofer oscillations with a periodicity …

Supercurrent-enabled Andreev reflection in a chiral quantum Hall edge state

AB Michelsen, P Recher, B Braunecker… - Physical Review …, 2023 - APS
A chiral quantum Hall (QH) edge state placed in proximity to an s-wave superconductor
experiences induced superconducting correlations. Recent experiments have observed the …

Superconductivity and fermionic dissipation in quantum Hall edges

N Schiller, BA Katzir, A Stern, E Berg, NH Lindner… - Physical Review B, 2023 - APS
Proximity-induced superconductivity in fractional quantum Hall edges is a prerequisite to
proposed realizations of parafermion zero modes. A recent experimental work [Gül, Phys …

Nonlocal transport measurements in hybrid quantum Hall–superconducting devices

L Zhao, EG Arnault, TFQ Larson, K Watanabe… - Physical Review B, 2024 - APS
There has been a growing interest in hybrid quantum Hall–superconductor devices, driven
by the prospect to realize exotic ground states and excitations with non-Abelian exchange …