---
_id: '10065'
abstract:
- lang: eng
  text: We study double quantum dots in a Ge/SiGe heterostructure and test their maturity
    towards singlet-triplet ($S-T_0$) qubits. We demonstrate a large range of tunability,
    from two single quantum dots to a double quantum dot. We measure Pauli spin blockade
    and study the anisotropy of the $g$-factor. We use an adjacent quantum dot for
    sensing charge transitions in the double quantum dot at interest. In conclusion,
    Ge/SiGe possesses all ingredients necessary for building a singlet-triplet qubit.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: "We thank Matthias Brauns for helpful discussions and careful proofreading
  of the manuscript. This project has received funding from the European Union’s Horizon
  2020 research and innovation program under the Marie Sklodowska-Curie grant agreement
  No 844511 and from the FWF project P30207. The research was supported by the Scientific
  Service Units of IST Austria through resources provided by the MIBA machine shop
  and the nanofabrication\r\nfacility."
article_number: '1910.05841'
article_processing_charge: No
arxiv: 1
author:
- first_name: Andrea C
  full_name: Hofmann, Andrea C
  id: 340F461A-F248-11E8-B48F-1D18A9856A87
  last_name: Hofmann
- first_name: Daniel
  full_name: Jirovec, Daniel
  id: 4C473F58-F248-11E8-B48F-1D18A9856A87
  last_name: Jirovec
  orcid: 0000-0002-7197-4801
- first_name: Maxim
  full_name: Borovkov, Maxim
  last_name: Borovkov
- first_name: Ivan
  full_name: Prieto Gonzalez, Ivan
  id: 2A307FE2-F248-11E8-B48F-1D18A9856A87
  last_name: Prieto Gonzalez
  orcid: 0000-0002-7370-5357
- first_name: Andrea
  full_name: Ballabio, Andrea
  last_name: Ballabio
- first_name: Jacopo
  full_name: Frigerio, Jacopo
  last_name: Frigerio
- first_name: Daniel
  full_name: Chrastina, Daniel
  last_name: Chrastina
- first_name: Giovanni
  full_name: Isella, Giovanni
  last_name: Isella
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
citation:
  ama: Hofmann AC, Jirovec D, Borovkov M, et al. Assessing the potential of Ge/SiGe
    quantum dots as hosts for singlet-triplet qubits. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.1910.05841">10.48550/arXiv.1910.05841</a>
  apa: Hofmann, A. C., Jirovec, D., Borovkov, M., Prieto Gonzalez, I., Ballabio, A.,
    Frigerio, J., … Katsaros, G. (n.d.). Assessing the potential of Ge/SiGe quantum
    dots as hosts for singlet-triplet qubits. <i>arXiv</i>. <a href="https://doi.org/10.48550/arXiv.1910.05841">https://doi.org/10.48550/arXiv.1910.05841</a>
  chicago: Hofmann, Andrea C, Daniel Jirovec, Maxim Borovkov, Ivan Prieto Gonzalez,
    Andrea Ballabio, Jacopo Frigerio, Daniel Chrastina, Giovanni Isella, and Georgios
    Katsaros. “Assessing the Potential of Ge/SiGe Quantum Dots as Hosts for Singlet-Triplet
    Qubits.” <i>ArXiv</i>, n.d. <a href="https://doi.org/10.48550/arXiv.1910.05841">https://doi.org/10.48550/arXiv.1910.05841</a>.
  ieee: A. C. Hofmann <i>et al.</i>, “Assessing the potential of Ge/SiGe quantum dots
    as hosts for singlet-triplet qubits,” <i>arXiv</i>. .
  ista: Hofmann AC, Jirovec D, Borovkov M, Prieto Gonzalez I, Ballabio A, Frigerio
    J, Chrastina D, Isella G, Katsaros G. Assessing the potential of Ge/SiGe quantum
    dots as hosts for singlet-triplet qubits. arXiv, 1910.05841.
  mla: Hofmann, Andrea C., et al. “Assessing the Potential of Ge/SiGe Quantum Dots
    as Hosts for Singlet-Triplet Qubits.” <i>ArXiv</i>, 1910.05841, doi:<a href="https://doi.org/10.48550/arXiv.1910.05841">10.48550/arXiv.1910.05841</a>.
  short: A.C. Hofmann, D. Jirovec, M. Borovkov, I. Prieto Gonzalez, A. Ballabio, J.
    Frigerio, D. Chrastina, G. Isella, G. Katsaros, ArXiv (n.d.).
corr_author: '1'
date_created: 2021-10-01T12:14:51Z
date_published: 2019-10-13T00:00:00Z
date_updated: 2026-09-13T22:30:43Z
day: '13'
department:
- _id: GeKa
doi: 10.48550/arXiv.1910.05841
ec_funded: 1
external_id:
  arxiv:
  - '1910.05841'
fulldoi: https://doi.org/10.48550/arXiv.1910.05841
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://arxiv.org/abs/1910.05841
month: '10'
oa: 1
oa_version: Preprint
project:
- _id: 26A151DA-B435-11E9-9278-68D0E5697425
  call_identifier: H2020
  grant_number: '844511'
  name: Majorana bound states in Ge/SiGe heterostructures
- _id: 2641CE5E-B435-11E9-9278-68D0E5697425
  call_identifier: FWF
  grant_number: P30207
  name: Hole spin orbit qubits in Ge quantum wells
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '10058'
    relation: dissertation_contains
    status: public
status: public
title: Assessing the potential of Ge/SiGe quantum dots as hosts for singlet-triplet
  qubits
type: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2019'
...