---
_id: '840'
abstract:
- lang: eng
  text: Heavy holes confined in quantum dots are predicted to be promising candidates
    for the realization of spin qubits with long coherence times. Here we focus on
    such heavy-hole states confined in germanium hut wires. By tuning the growth density
    of the latter we can realize a T-like structure between two neighboring wires.
    Such a structure allows the realization of a charge sensor, which is electrostatically
    and tunnel coupled to a quantum dot, with charge-transfer signals as high as 0.3
    e. By integrating the T-like structure into a radiofrequency reflectometry setup,
    single-shot measurements allowing the extraction of hole tunneling times are performed.
    The extracted tunneling times of less than 10 μs are attributed to the small effective
    mass of Ge heavy-hole states and pave the way toward projective spin readout measurements.
acknowledged_ssus:
- _id: M-Shop
article_processing_charge: No
author:
- first_name: Lada
  full_name: Vukusic, Lada
  id: 31E9F056-F248-11E8-B48F-1D18A9856A87
  last_name: Vukusic
  orcid: 0000-0003-2424-8636
- first_name: Josip
  full_name: Kukucka, Josip
  id: 3F5D8856-F248-11E8-B48F-1D18A9856A87
  last_name: Kukucka
- first_name: Hannes
  full_name: Watzinger, Hannes
  id: 35DF8E50-F248-11E8-B48F-1D18A9856A87
  last_name: Watzinger
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
citation:
  ama: Vukušić L, Kukucka J, Watzinger H, Katsaros G. Fast hole tunneling times in
    germanium hut wires probed by single-shot reflectometry. <i>Nano Letters</i>.
    2017;17(9):5706-5710. doi:<a href="https://doi.org/10.1021/acs.nanolett.7b02627">10.1021/acs.nanolett.7b02627</a>
  apa: Vukušić, L., Kukucka, J., Watzinger, H., &#38; Katsaros, G. (2017). Fast hole
    tunneling times in germanium hut wires probed by single-shot reflectometry. <i>Nano
    Letters</i>. American Chemical Society. <a href="https://doi.org/10.1021/acs.nanolett.7b02627">https://doi.org/10.1021/acs.nanolett.7b02627</a>
  chicago: Vukušić, Lada, Josip Kukucka, Hannes Watzinger, and Georgios Katsaros.
    “Fast Hole Tunneling Times in Germanium Hut Wires Probed by Single-Shot Reflectometry.”
    <i>Nano Letters</i>. American Chemical Society, 2017. <a href="https://doi.org/10.1021/acs.nanolett.7b02627">https://doi.org/10.1021/acs.nanolett.7b02627</a>.
  ieee: L. Vukušić, J. Kukucka, H. Watzinger, and G. Katsaros, “Fast hole tunneling
    times in germanium hut wires probed by single-shot reflectometry,” <i>Nano Letters</i>,
    vol. 17, no. 9. American Chemical Society, pp. 5706–5710, 2017.
  ista: Vukušić L, Kukucka J, Watzinger H, Katsaros G. 2017. Fast hole tunneling times
    in germanium hut wires probed by single-shot reflectometry. Nano Letters. 17(9),
    5706–5710.
  mla: Vukušić, Lada, et al. “Fast Hole Tunneling Times in Germanium Hut Wires Probed
    by Single-Shot Reflectometry.” <i>Nano Letters</i>, vol. 17, no. 9, American Chemical
    Society, 2017, pp. 5706–10, doi:<a href="https://doi.org/10.1021/acs.nanolett.7b02627">10.1021/acs.nanolett.7b02627</a>.
  short: L. Vukušić, J. Kukucka, H. Watzinger, G. Katsaros, Nano Letters 17 (2017)
    5706–5710.
corr_author: '1'
date_created: 2018-12-11T11:48:47Z
date_published: 2017-08-10T00:00:00Z
date_updated: 2025-07-10T11:57:05Z
day: '10'
ddc:
- '539'
department:
- _id: GeKa
doi: 10.1021/acs.nanolett.7b02627
ec_funded: 1
external_id:
  isi:
  - '000411043500078'
file:
- access_level: open_access
  checksum: 761371a0129b2aa442424b9561450ece
  content_type: application/pdf
  creator: system
  date_created: 2018-12-12T10:12:33Z
  date_updated: 2020-07-14T12:48:13Z
  file_id: '4951'
  file_name: IST-2017-865-v1+1_acs.nanolett.7b02627.pdf
  file_size: 2449546
  relation: main_file
file_date_updated: 2020-07-14T12:48:13Z
has_accepted_license: '1'
intvolume: '        17'
isi: 1
issue: '9'
language:
- iso: eng
license: https://creativecommons.org/licenses/by/4.0/
month: '08'
oa: 1
oa_version: Published Version
page: 5706 - 5710
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
publication: Nano Letters
publication_identifier:
  issn:
  - 1530-6984
publication_status: published
publisher: American Chemical Society
publist_id: '6808'
pubrep_id: '865'
quality_controlled: '1'
related_material:
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    relation: popular_science
  - id: '7996'
    relation: dissertation_contains
    status: public
  - id: '69'
    relation: dissertation_contains
    status: public
scopus_import: '1'
status: public
title: Fast hole tunneling times in germanium hut wires probed by single-shot reflectometry
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: 2DF688A6-F248-11E8-B48F-1D18A9856A87
volume: 17
year: '2017'
...