# Coherent charge oscillations in a bilayer graphene double quantum dot

https://mdr.nims.go.jp/datasets/996bd33d-6b4c-4b0a-9294-794bca3c678b

## Files

- [s41467-023-43541-3.pdf](https://mdr.nims.go.jp/filesets/55f20878-2af6-47c9-bb1d-d267eb41dacc/download) ([Detail](https://mdr.nims.go.jp/filesets/55f20878-2af6-47c9-bb1d-d267eb41dacc.md))

## Id

996bd33d-6b4c-4b0a-9294-794bca3c678b

## Local identifier



## Visibility

open_to_public

## State

published

## Created at

2025-02-07T07:44:51.494547Z

## Updated at

2025-02-10T07:30:35.762929Z

## Published at

2025-02-10T07:30:35.846458Z

## Doi



## First published url

https://doi.org/10.1038/s41467-023-43541-3

## Date published

2023-11-30

## Recorded date published



## Resource type

journal_article

## Manuscript type

vor

## Collection



## Title

- title: Coherent charge oscillations in a bilayer graphene double quantum dot
  title_type: original
  lang: en

## Description

- description: The coherent dynamics of a quantum mechan- ical two-level system driven
    through an anti- crossing of two energy levels can be described using Landau-Zener-Stu
    ̈ckelberg (LZS) interfer- ence. LZS interference spectroscopy has proven to be
    a fruitful tool to investigate charge noise and charge decoherence in semiconductor
    quan- tum dots (QDs). Recently, bilayer graphene has developed as a promising
    platform to host highly tunable QDs potentially useful for hosting spin and valley
    qubits. So far no charge coherence has been observed and little is known about
    charge noise in this material. Here, we report coher- ent charge oscillations
    and T2∗ charge decoherence times in a bilayer graphene double QD. The charge decoherence
    times are measured indepen- dently using LZS interference and photon assisted
    tunneling and both techniques yield values in the range of 400 to 500 ps. The
    observation of charge coherence allows studying the origin and spec- tral distribution
    of charge noise in future experiments.
  description_type: abstract
  lang: und

## Creator

- name: K. Hecker
  role: author
- name: L. Banszerus
  role: author
- name: A. Schäpers
  role: author
- name: S. Möller
  role: author
- name: A. Peters
  role: author
- name: E. Icking
  role: author
- name: K. Watanabe
  role: author
  orcid: https://orcid.org/0000-0003-3701-8119
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: T. Taniguchi
  role: author
  orcid: https://orcid.org/0000-0002-1467-3105
  organization: National Institute for Materials Science
  ror: https://ror.org/026v1ze26
- name: C. Volk
  role: author
- name: C. Stampfer
  role: author

## Contact agent



## Publisher

organization: Springer Science and Business Media LLC

## Managing organization



## Keyword

- subject: Landau-Zener-Stückelberg-Majorana interference
  schema: not_defined
- subject: bilayer graphene
  schema: not_defined
- subject: charge decoherence
  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: '14'
  issue: '1'
  article_number: '7911'

## Conference



## Related item



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## Instrument



## Instrument operator



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## Measurement method



## Specimen



## Chemical composition



## Structure for specimen



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## Fileset

- id: 55f20878-2af6-47c9-bb1d-d267eb41dacc
  filename: s41467-023-43541-3.pdf
  content_type: application/pdf
  size: 1192281
  md5: 0f555c2beaaccf2f99a493fe38eaffc6

## Thumbnail

fileset_id: 55f20878-2af6-47c9-bb1d-d267eb41dacc
filename: s41467-023-43541-3.pdf