---
_id: '77'
abstract:
- lang: eng
  text: Holes confined in quantum dots have gained considerable interest in the past
    few years due to their potential as spin qubits. Here we demonstrate two-axis
    control of a spin 3/2 qubit in natural Ge. The qubit is formed in a hut wire double
    quantum dot device. The Pauli spin blockade principle allowed us to demonstrate
    electric dipole spin resonance by applying a radio frequency electric field to
    one of the electrodes defining the double quantum dot. Coherent hole spin oscillations
    with Rabi frequencies reaching 140 MHz are demonstrated and dephasing times of
    130 ns are measured. The reported results emphasize the potential of Ge as a platform
    for fast and electrically tunable hole spin qubit devices.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
article_processing_charge: Yes
article_type: original
author:
- first_name: Hannes
  full_name: Watzinger, Hannes
  id: 35DF8E50-F248-11E8-B48F-1D18A9856A87
  last_name: Watzinger
- first_name: Josip
  full_name: Kukucka, Josip
  id: 3F5D8856-F248-11E8-B48F-1D18A9856A87
  last_name: Kukucka
- first_name: Lada
  full_name: Vukusic, Lada
  id: 31E9F056-F248-11E8-B48F-1D18A9856A87
  last_name: Vukusic
  orcid: 0000-0003-2424-8636
- first_name: Fei
  full_name: Gao, Fei
  last_name: Gao
- first_name: Ting
  full_name: Wang, Ting
  last_name: Wang
- first_name: Friedrich
  full_name: Schäffler, Friedrich
  last_name: Schäffler
- first_name: Jian
  full_name: Zhang, Jian
  last_name: Zhang
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
citation:
  ama: Watzinger H, Kukucka J, Vukušić L, et al. A germanium hole spin qubit. <i>Nature
    Communications</i>. 2018;9(3902). doi:<a href="https://doi.org/10.1038/s41467-018-06418-4">10.1038/s41467-018-06418-4</a>
  apa: Watzinger, H., Kukucka, J., Vukušić, L., Gao, F., Wang, T., Schäffler, F.,
    … Katsaros, G. (2018). A germanium hole spin qubit. <i>Nature Communications</i>.
    Nature Publishing Group. <a href="https://doi.org/10.1038/s41467-018-06418-4">https://doi.org/10.1038/s41467-018-06418-4</a>
  chicago: Watzinger, Hannes, Josip Kukucka, Lada Vukušić, Fei Gao, Ting Wang, Friedrich
    Schäffler, Jian Zhang, and Georgios Katsaros. “A Germanium Hole Spin Qubit.” <i>Nature
    Communications</i>. Nature Publishing Group, 2018. <a href="https://doi.org/10.1038/s41467-018-06418-4">https://doi.org/10.1038/s41467-018-06418-4</a>.
  ieee: H. Watzinger <i>et al.</i>, “A germanium hole spin qubit,” <i>Nature Communications</i>,
    vol. 9, no. 3902. Nature Publishing Group, 2018.
  ista: Watzinger H, Kukucka J, Vukušić L, Gao F, Wang T, Schäffler F, Zhang J, Katsaros
    G. 2018. A germanium hole spin qubit. Nature Communications. 9(3902).
  mla: Watzinger, Hannes, et al. “A Germanium Hole Spin Qubit.” <i>Nature Communications</i>,
    vol. 9, no. 3902, Nature Publishing Group, 2018, doi:<a href="https://doi.org/10.1038/s41467-018-06418-4">10.1038/s41467-018-06418-4</a>.
  short: H. Watzinger, J. Kukucka, L. Vukušić, F. Gao, T. Wang, F. Schäffler, J. Zhang,
    G. Katsaros, Nature Communications 9 (2018).
date_created: 2018-12-11T11:44:30Z
date_published: 2018-09-25T00:00:00Z
date_updated: 2026-04-08T07:27:13Z
day: '25'
ddc:
- '530'
department:
- _id: GeKa
doi: 10.1038/s41467-018-06418-4
ec_funded: 1
external_id:
  isi:
  - '000445560800010'
file:
- access_level: open_access
  checksum: e7148c10a64497e279c4de570b6cc544
  content_type: application/pdf
  creator: dernst
  date_created: 2018-12-17T10:28:30Z
  date_updated: 2020-07-14T12:48:02Z
  file_id: '5687'
  file_name: 2018_NatureComm_Watzinger.pdf
  file_size: 1063469
  relation: main_file
file_date_updated: 2020-07-14T12:48:02Z
fulldoi: https://doi.org/10.1038/s41467-018-06418-4
has_accepted_license: '1'
intvolume: '         9'
isi: 1
issue: '3902 '
language:
- iso: eng
month: '09'
oa: 1
oa_version: Published Version
project:
- _id: 25517E86-B435-11E9-9278-68D0E5697425
  call_identifier: FP7
  grant_number: '335497'
  name: Towards Spin qubits and Majorana fermions in Germanium self assembled hut-wires
- _id: 2552F888-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: Y00715
  name: Loch Spin-Qubits und Majorana-Fermionen in Germanium
publication: Nature Communications
publication_status: published
publisher: Nature Publishing Group
quality_controlled: '1'
related_material:
  record:
  - id: '7977'
    relation: popular_science
  - id: '7996'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: A germanium hole spin qubit
tmp:
  image: /images/cc_by.png
  legal_code_url: https://creativecommons.org/licenses/by/4.0/legalcode
  name: Creative Commons Attribution 4.0 International Public License (CC-BY 4.0)
  short: CC BY (4.0)
type: journal_article
user_id: c635000d-4b10-11ee-a964-aac5a93f6ac1
volume: 9
year: '2018'
...