# Scaling behavior of electron decoherence in a graphene Mach-Zehnder interferometer

https://mdr.nims.go.jp/datasets/92abf023-7ec9-4083-ae45-98524706bc0c

## File

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## Id

92abf023-7ec9-4083-ae45-98524706bc0c

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-26T05:19:15.327126Z

## Updated at

2025-02-26T23:31:12.119582Z

## Published at

2025-02-26T23:31:12.225046Z

## Doi



## First published url

https://doi.org/10.1038/s41467-022-33078-2

## Date published

2022-09-17

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Scaling behavior of electron decoherence in a graphene Mach-Zehnder interferometer
  title_type: original
  lang: en

## Description

- description: Over the past 20 years, many efforts have been made to understand and
    control decoherence in 2D electron systems. In particular, several types of electronic
    interferometers have been considered in GaAs heterostructures, in order to protect
    the interfering electrons from decoherence. Nevertheless, it is now understood
    that several intrinsic decoherence sources fundamentally limit more advanced quantum
    manipulations. Here, we show that graphene offers a unique possibility to reach
    a regime where the decoherence is frozen and to study unexplored regimes of electron
    interferometry. We probe the decoherence of electron channels in a graphene quantum
    Hall PN junction, forming a Mach-Zehnder interferometer, and unveil a scaling
    behavior of decay of the interference visibility with the temperature scaled by
    the interferometer length. It exhibits a remarkable crossover from an exponential
    decay at higher temperature to an algebraic decay at lower temperature where almost
    no decoherence occurs, a regime previously unobserved in GaAs interferometers.
  description_type: abstract
  lang: und

## Creator

- name: M. Jo
  role: author
- name: June-Young M. Lee
  role: author
- name: A. Assouline
  role: author
- name: P. Brasseur
  role: author
- name: K. Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
- name: T. Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
- name: P. Roche
  role: author
- name: D. C. Glattli
  role: author
- name: N. Kumada
  role: author
- name: F. D. Parmentier
  role: author
- name: H. -S. Sim
  role: author
- name: P. Roulleau
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Decoherence
  schema: not_defined
- subject: electron interferometry
  schema: not_defined
- subject: graphene
  schema: not_defined

## Rights

- identifier: https://creativecommons.org/licenses/by/4.0/

## Other identifier(s)



## Data origin



## Embargo



## Journal

- title: Nature Communications
  issn: '20411723'
  volume: '13'
  issue: '1'
  article_number: '5473'

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## Fileset

- id: 2ab858b0-007c-4c9a-92a8-b421ab69590e
  filename: s41467-022-33078-2.pdf
  content_type: application/pdf
  size: 2913984
  md5: e1522159d61aabcdd78f0e69900f7b3d

## Thumbnail

fileset_id: 2ab858b0-007c-4c9a-92a8-b421ab69590e
filename: s41467-022-33078-2.pdf