# Ballistic-to-diffusive transition in engineered counterpropagating quantum Hall channels

https://mdr.nims.go.jp/datasets/a56ee666-e412-40ac-a0a7-6dca16c4d1b0

## File

- [3d25-wpth.pdf](https://mdr.nims.go.jp/filesets/c510c3f5-6d2d-4637-83a9-3b3a29dce907/download) ([Detail](https://mdr.nims.go.jp/filesets/c510c3f5-6d2d-4637-83a9-3b3a29dce907.md))

## Id

a56ee666-e412-40ac-a0a7-6dca16c4d1b0

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2026-02-14T09:46:55.235240Z

## Updated at

2026-02-16T07:30:53.303849Z

## Published at

2026-02-16T04:57:32.948389Z

## Doi



## First published url

https://doi.org/10.1103/3d25-wpth

## Date published

2025-11-19

## Recorded date published

2025-11

## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Ballistic-to-diffusive transition in engineered counterpropagating quantum
    Hall channels
  title_type: original
  lang: en

## Description

- description: 'Quantum Hall systems featuring counterpropagating edge states can
    exhibit nonuniversal transport regimes, often dependent on sample size. Here,
    we experimentally investigate the transport properties of a specially designed
    quantum Hall device hosting a tunable number of counterpropagating edge states.
    These edge states are coupled via Landauer reservoirs, enabling charge equilibration
    over a controllable effective length. Charge transport is governed by the balance
    between up- and downstream channels: when channel numbers are unequal, a ballistic
    transport regime emerges; with equal channel numbers, a transition to a critical
    diffusive regime is observed, marked by a diverging equilibration length. This
    experimental technique enables simulation of the equilibration dynamics of hole-conjugate
    states and other exotic quantum Hall phenomena using well-understood quantum Hall
    states under fully controlled conditions.'
  description_type: abstract
  lang: und

## Creator

- name: Aifei Zhang
  role: author
- name: Kenji Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: Takashi Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: Patrice Roche
  role: author
- name: Carles Altimiras
  role: author
- name: François D. Parmentier
  role: author
- name: Olivier Maillet
  role: author

## Contact agent



## Publisher

organization: American Physical Society (APS)

## Managing organization



## Keyword

- subject: 'quantum Hall effect
    '
  schema: not_defined
- subject: 'counterpropagating edge states
    '
  schema: not_defined
- subject: ballistic-to-diffusive transition
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/
  date_licensed: 2025-11-19

## Other identifier(s)



## Data origin

- data_origin_type: other

## Embargo



## Journal

- title: Physical Review Research
  issn: '26431564'
  volume: '7'
  issue: '4'
  article_number: L042037

## Conference



## Related item



## Funding

- identifier: ERC-2018-STG
  funder_name: H2020 European Research Council
- identifier: ANR-10-LABX-0039-PALM
  funder_name: Laboratoire d’excellence Physique Atomes Lumière Matière
- identifier: ANR-23-CE47-0002 CRAQUANT
  funder_name: Agence Nationale de la Recherche
- identifier: 21H05233
  funder_name: Japan Society for the Promotion of Science
- identifier: 23H02052
  funder_name: Japan Society for the Promotion of Science
- identifier: JPMJCR24A5
  funder_name: Collaborative Research in Engineering, Science and Technology Centre

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## Fileset

- id: c510c3f5-6d2d-4637-83a9-3b3a29dce907
  filename: 3d25-wpth.pdf
  content_type: application/pdf
  size: 543190
  md5: 38650320d743a312570e8b9d9ff64004

## Thumbnail

fileset_id: c510c3f5-6d2d-4637-83a9-3b3a29dce907
filename: 3d25-wpth.pdf