---
APC_amount: 7068 EUR
DOAJ_listed: '1'
OA_place: publisher
OA_type: gold
_id: '19401'
abstract:
- lang: eng
  text: High kinetic inductance superconductors are gaining increasing interest for
    the realisation of qubits, amplifiers and detectors. Moreover, thanks to their
    high impedance, quantum buses made of such materials enable large zero-point fluctuations
    of the voltage, boosting the coupling rates to spin and charge qubits. However,
    fully exploiting the potential of disordered or granular superconductors is challenging,
    as their inductance and, therefore, impedance at high values are difficult to
    control. Here, we report a reproducible fabrication of granular aluminium resonators
    by developing a wireless ohmmeter, which allows in situ measurements during film
    deposition and, therefore, control of the kinetic inductance of granular aluminium
    films. Reproducible fabrication of circuits with impedances (inductances) exceeding
    13 kΩ (1 nH per square) is now possible. By integrating a 7.9 kΩ resonator with
    a germanium double quantum dot, we demonstrate strong charge-photon coupling with
    a rate of gc/2π = 566 ± 2 MHz. This broadly applicable method opens the path for
    novel qubits and high-fidelity, long-distance two-qubit gates.
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: 'We acknowledge Franco De Palma, Mahya Khorramshahi, Fabian Oppliger,
  Thomas Reisinger, Pasquale Scarlino and Xiao Xue for helpful discussions. We thank
  Simon Robson for proofreading the manuscript. This research was supported by the
  Scientific Service Units of ISTA through resources provided by the MIBA Machine
  Shop and the Nanofabrication facility. This research and related results were made
  possible with the support of the NOMIS Foundation and the HORIZON-RIA 101069515
  project. This research was funded in whole or in part by the Austrian Science Fund
  (FWF) https://doi.org/10.55776/P32235, https://doi.org/10.55776/I5060 and https://doi.org/10.55776/P36507.
  For Open Access purposes, the author has applied a CC BY public copyright license
  to any author accepted manuscript version arising from this submission. M.J. acknowledges
  funding from FellowQUTE 2024-01. K.R. acknowledges funding from the European Union’s
  Horizon 2020 research and innovation program under the Marie Skłodowska-Curie Grant
  Agreement No. 101034413. I.M.P. acknowledges funding from the Deutsche Forschungsgemeinschaft
  (DFG - German Research Foundation) under project number 450396347 (GeHoldeQED).
  ICN2 acknowledges funding from Generalitat de Catalunya 2021SGR00457. We acknowledge
  support from CSIC Interdisciplinary Thematic Platform (PTI+) on Quantum Technologies
  (PTI-QTEP+). This research work has been funded by the European Commission - NextGenerationEU
  (Regulation EU 2020/2094), through CSIC’s Quantum Technologies Platform (QTEP).
  ICN2 is supported by the Severo Ochoa programme from Spanish MCIN/AEI (Grant No.:
  CEX2021-001214-S) and is funded by the CERCA Programme/Generalitat de Catalunya.
  Part of the present work has been performed in the framework of Universitat Autònoma
  de Barcelona Materials Science PhD programme. AGM has received funding from Grant
  RYC2021-033479-I funded by MCIN/AEI/10.13039/501100011033 and by European Union
  NextGenerationEU/PRTR. M.B. acknowledges support from SUR Generalitat de Catalunya
  and the EU Social Fund; project ref. 2020 FI 00103. The authors acknowledge the
  use of instrumentation and the technical advice provided by the Joint Electron Microscopy
  Centre at ALBA (JEMCA). ICN2 acknowledges funding from Grant IU16-014206 (METCAM-FIB)
  funded by the European Union through the European Regional Development Fund (ERDF),
  with the support of the Ministry of Research and Universities, Generalitat de Catalunya.
  ICN2 is a founding member of e-DREAM60.'
article_number: '2103'
article_processing_charge: Yes
article_type: original
arxiv: 1
author:
- first_name: Marian
  full_name: Janik, Marian
  id: 396A1950-F248-11E8-B48F-1D18A9856A87
  last_name: Janik
  orcid: 0009-0003-9037-8831
- first_name: Kevin Etienne Robert
  full_name: Roux, Kevin Etienne Robert
  id: 53f93ea2-803f-11ed-ab7e-b283135794ef
  last_name: Roux
- first_name: Carla N
  full_name: Borja Espinosa, Carla N
  id: 18777c01-896a-11ed-bdf8-e4851dc07d16
  last_name: Borja Espinosa
- first_name: Oliver
  full_name: Sagi, Oliver
  id: 71616374-A8E9-11E9-A7CA-09ECE5697425
  last_name: Sagi
- first_name: Abdulhamid
  full_name: Baghdadi, Abdulhamid
  id: 160D87FA-96B5-11E9-BF77-7626E6697425
  last_name: Baghdadi
- first_name: Thomas
  full_name: Adletzberger, Thomas
  id: 38756BB2-F248-11E8-B48F-1D18A9856A87
  last_name: Adletzberger
- first_name: Stefano
  full_name: Calcaterra, Stefano
  last_name: Calcaterra
- first_name: Marc
  full_name: Botifoll, Marc
  last_name: Botifoll
- first_name: Alba
  full_name: Garzón Manjón, Alba
  last_name: Garzón Manjón
- first_name: Jordi
  full_name: Arbiol, Jordi
  last_name: Arbiol
- first_name: Daniel
  full_name: Chrastina, Daniel
  last_name: Chrastina
- first_name: Giovanni
  full_name: Isella, Giovanni
  last_name: Isella
- first_name: Ioan M.
  full_name: Pop, Ioan M.
  last_name: Pop
- first_name: Georgios
  full_name: Katsaros, Georgios
  id: 38DB5788-F248-11E8-B48F-1D18A9856A87
  last_name: Katsaros
  orcid: 0000-0001-8342-202X
citation:
  ama: Janik M, Roux KER, Borja Espinosa CN, et al. Strong charge-photon coupling
    in planar germanium enabled by granular aluminium superinductors. <i>Nature Communications</i>.
    2025;16. doi:<a href="https://doi.org/10.1038/s41467-025-57252-4">10.1038/s41467-025-57252-4</a>
  apa: Janik, M., Roux, K. E. R., Borja Espinosa, C. N., Sagi, O., Baghdadi, A., Adletzberger,
    T., … Katsaros, G. (2025). Strong charge-photon coupling in planar germanium enabled
    by granular aluminium superinductors. <i>Nature Communications</i>. Springer Nature.
    <a href="https://doi.org/10.1038/s41467-025-57252-4">https://doi.org/10.1038/s41467-025-57252-4</a>
  chicago: Janik, Marian, Kevin Etienne Robert Roux, Carla N Borja Espinosa, Oliver
    Sagi, Abdulhamid Baghdadi, Thomas Adletzberger, Stefano Calcaterra, et al. “Strong
    Charge-Photon Coupling in Planar Germanium Enabled by Granular Aluminium Superinductors.”
    <i>Nature Communications</i>. Springer Nature, 2025. <a href="https://doi.org/10.1038/s41467-025-57252-4">https://doi.org/10.1038/s41467-025-57252-4</a>.
  ieee: M. Janik <i>et al.</i>, “Strong charge-photon coupling in planar germanium
    enabled by granular aluminium superinductors,” <i>Nature Communications</i>, vol.
    16. Springer Nature, 2025.
  ista: Janik M, Roux KER, Borja Espinosa CN, Sagi O, Baghdadi A, Adletzberger T,
    Calcaterra S, Botifoll M, Garzón Manjón A, Arbiol J, Chrastina D, Isella G, Pop
    IM, Katsaros G. 2025. Strong charge-photon coupling in planar germanium enabled
    by granular aluminium superinductors. Nature Communications. 16, 2103.
  mla: Janik, Marian, et al. “Strong Charge-Photon Coupling in Planar Germanium Enabled
    by Granular Aluminium Superinductors.” <i>Nature Communications</i>, vol. 16,
    2103, Springer Nature, 2025, doi:<a href="https://doi.org/10.1038/s41467-025-57252-4">10.1038/s41467-025-57252-4</a>.
  short: M. Janik, K.E.R. Roux, C.N. Borja Espinosa, O. Sagi, A. Baghdadi, T. Adletzberger,
    S. Calcaterra, M. Botifoll, A. Garzón Manjón, J. Arbiol, D. Chrastina, G. Isella,
    I.M. Pop, G. Katsaros, Nature Communications 16 (2025).
corr_author: '1'
date_created: 2025-03-16T23:01:23Z
date_published: 2025-03-01T00:00:00Z
date_updated: 2026-05-20T06:34:51Z
day: '01'
ddc:
- '530'
department:
- _id: GeKa
- _id: JoFi
- _id: M-Shop
doi: 10.1038/s41467-025-57252-4
ec_funded: 1
external_id:
  arxiv:
  - '2407.03079'
  isi:
  - '001434774800001'
  pmid:
  - '40025007'
file:
- access_level: open_access
  checksum: a9383dd978ca2c50b7dded6c0bb2cd49
  content_type: application/pdf
  creator: dernst
  date_created: 2025-03-17T10:53:32Z
  date_updated: 2025-03-17T10:53:32Z
  file_id: '19415'
  file_name: 2025_NatureComm_Janik.pdf
  file_size: 6364878
  relation: main_file
  success: 1
file_date_updated: 2025-03-17T10:53:32Z
has_accepted_license: '1'
intvolume: '        16'
isi: 1
language:
- iso: eng
month: '03'
oa: 1
oa_version: Published Version
pmid: 1
project:
- _id: 34c0acea-11ca-11ed-8bc3-8775e10fd452
  grant_number: '101069515'
  name: Integrated Germanium Quantum Technology
- _id: 237B3DA4-32DE-11EA-91FC-C7463DDC885E
  call_identifier: FWF
  grant_number: P32235
  name: Towards scalable hut wire quantum devices
- _id: c0977eea-5a5b-11eb-8a69-a862db0cf4d1
  grant_number: I05060
  name: High impedance circuit quantum electrodynamics with hole spins
- _id: bd8bd29e-d553-11ed-ba76-f0070d4b237a
  grant_number: P36507
  name: Merging spin and superconducting qubits in planar Ge
- _id: fc2ed2f7-9c52-11eb-aca3-c01059dda49c
  call_identifier: H2020
  grant_number: '101034413'
  name: 'IST-BRIDGE: International postdoctoral program'
- _id: 3AC91DDA-15DF-11EA-824D-93A3E7B544D1
  call_identifier: FWF
  name: FWF Open Access Fund
publication: Nature Communications
publication_identifier:
  eissn:
  - 2041-1723
publication_status: published
publisher: Springer Nature
quality_controlled: '1'
related_material:
  record:
  - id: '18144'
    relation: earlier_version
    status: public
  - id: '18886'
    relation: research_data
    status: public
scopus_import: '1'
status: public
title: Strong charge-photon coupling in planar germanium enabled by granular aluminium
  superinductors
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: 16
year: '2025'
...
---
OA_place: repository
_id: '13312'
abstract:
- lang: eng
  text: "Superconductor/semiconductor hybrid devices have attracted increasing\r\ninterest
    in the past years. Superconducting electronics aims to complement\r\nsemiconductor
    technology, while hybrid architectures are at the forefront of\r\nnew ideas such
    as topological superconductivity and protected qubits. In this\r\nwork, we engineer
    the induced superconductivity in two-dimensional germanium\r\nhole gas by varying
    the distance between the quantum well and the aluminum. We\r\ndemonstrate a hard
    superconducting gap and realize an electrically and flux\r\ntunable superconducting
    diode using a superconducting quantum interference\r\ndevice (SQUID). This allows
    to tune the current phase relation (CPR), to a\r\nregime where single Cooper pair
    tunneling is suppressed, creating a $ \\sin\r\n\\left( 2 \\varphi \\right)$ CPR.
    Shapiro experiments complement this\r\ninterpretation and the microwave drive
    allows to create a diode with $ \\approx\r\n100 \\%$ efficiency. The reported
    results open up the path towards monolithic\r\nintegration of spin qubit devices,
    microwave resonators and (protected)\r\nsuperconducting qubits on a silicon technology
    compatible platform."
acknowledged_ssus:
- _id: M-Shop
- _id: NanoFab
acknowledgement: "The authors acknowledge Alexander Brinkmann, Alessandro Crippa,
  Andrew Higginbotham, Andrea Iorio, Giordano\r\nScappucci and Christian Schonenberger
  for helpful discussions. We thank Marcel Verheijen for the support in the\r\nTEM
  analysis. This research and related results were made\r\npossible with the support
  of the NOMIS Foundation. It was\r\nsupported by the Scientific Service Units of
  ISTA through resources provided by the MIBA Machine Shop and the\r\nnanofabrication
  facility, the European Union’s Horizon 2020\r\nresearch and innovation programme
  under Grant Agreement\r\nNo 862046, the HORIZON-RIA 101069515 project and the\r\nFWF
  Projects #P-32235, #P-36507 and #F-8606. R.S.S.\r\nacknowledges Spanish CM “Talento
  Program” Project No.\r\n2022-T1/IND-24070."
article_number: '2306.07109'
article_processing_charge: No
arxiv: 1
author:
- first_name: Marco
  full_name: Valentini, Marco
  id: C0BB2FAC-D767-11E9-B658-BC13E6697425
  last_name: Valentini
- first_name: Oliver
  full_name: Sagi, Oliver
  id: 71616374-A8E9-11E9-A7CA-09ECE5697425
  last_name: Sagi
- first_name: Levon
  full_name: Baghumyan, Levon
  last_name: Baghumyan
- first_name: Thijs de
  full_name: Gijsel, Thijs de
  last_name: Gijsel
- first_name: Jason
  full_name: Jung, Jason
  id: 4C9ACE7A-F248-11E8-B48F-1D18A9856A87
  last_name: Jung
- first_name: Stefano
  full_name: Calcaterra, Stefano
  last_name: Calcaterra
- first_name: Andrea
  full_name: Ballabio, Andrea
  last_name: Ballabio
- first_name: Juan Aguilera
  full_name: Servin, Juan Aguilera
  last_name: Servin
- first_name: Kushagra
  full_name: Aggarwal, Kushagra
  id: b22ab905-3539-11eb-84c3-fc159dcd79cb
  last_name: Aggarwal
  orcid: 0000-0001-9985-9293
- first_name: Marian
  full_name: Janik, Marian
  id: 396A1950-F248-11E8-B48F-1D18A9856A87
  last_name: Janik
  orcid: 0009-0003-9037-8831
- first_name: Thomas
  full_name: Adletzberger, Thomas
  id: 38756BB2-F248-11E8-B48F-1D18A9856A87
  last_name: Adletzberger
- first_name: Rubén Seoane
  full_name: Souto, Rubén Seoane
  last_name: Souto
- first_name: Martin
  full_name: Leijnse, Martin
  last_name: Leijnse
- first_name: Jeroen
  full_name: Danon, Jeroen
  last_name: Danon
- first_name: Constantin
  full_name: Schrade, Constantin
  last_name: Schrade
- first_name: Erik
  full_name: Bakkers, Erik
  last_name: Bakkers
- 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: Valentini M, Sagi O, Baghumyan L, et al. Radio frequency driven superconducting
    diode and parity conserving  Cooper pair transport in a two-dimensional germanium
    hole gas. <i>arXiv</i>. doi:<a href="https://doi.org/10.48550/arXiv.2306.07109">10.48550/arXiv.2306.07109</a>
  apa: Valentini, M., Sagi, O., Baghumyan, L., Gijsel, T. de, Jung, J., Calcaterra,
    S., … Katsaros, G. (n.d.). Radio frequency driven superconducting diode and parity
    conserving  Cooper pair transport in a two-dimensional germanium hole gas. <i>arXiv</i>.
    <a href="https://doi.org/10.48550/arXiv.2306.07109">https://doi.org/10.48550/arXiv.2306.07109</a>
  chicago: Valentini, Marco, Oliver Sagi, Levon Baghumyan, Thijs de Gijsel, Jason
    Jung, Stefano Calcaterra, Andrea Ballabio, et al. “Radio Frequency Driven Superconducting
    Diode and Parity Conserving  Cooper Pair Transport in a Two-Dimensional Germanium
    Hole Gas.” <i>ArXiv</i>, n.d. <a href="https://doi.org/10.48550/arXiv.2306.07109">https://doi.org/10.48550/arXiv.2306.07109</a>.
  ieee: M. Valentini <i>et al.</i>, “Radio frequency driven superconducting diode
    and parity conserving  Cooper pair transport in a two-dimensional germanium hole
    gas,” <i>arXiv</i>. .
  ista: Valentini M, Sagi O, Baghumyan L, Gijsel T de, Jung J, Calcaterra S, Ballabio
    A, Servin JA, Aggarwal K, Janik M, Adletzberger T, Souto RS, Leijnse M, Danon
    J, Schrade C, Bakkers E, Chrastina D, Isella G, Katsaros G. Radio frequency driven
    superconducting diode and parity conserving  Cooper pair transport in a two-dimensional
    germanium hole gas. arXiv, 2306.07109.
  mla: Valentini, Marco, et al. “Radio Frequency Driven Superconducting Diode and
    Parity Conserving  Cooper Pair Transport in a Two-Dimensional Germanium Hole Gas.”
    <i>ArXiv</i>, 2306.07109, doi:<a href="https://doi.org/10.48550/arXiv.2306.07109">10.48550/arXiv.2306.07109</a>.
  short: M. Valentini, O. Sagi, L. Baghumyan, T. de Gijsel, J. Jung, S. Calcaterra,
    A. Ballabio, J.A. Servin, K. Aggarwal, M. Janik, T. Adletzberger, R.S. Souto,
    M. Leijnse, J. Danon, C. Schrade, E. Bakkers, D. Chrastina, G. Isella, G. Katsaros,
    ArXiv (n.d.).
corr_author: '1'
date_created: 2023-07-26T11:17:20Z
date_published: 2023-06-13T00:00:00Z
date_updated: 2026-04-07T13:27:22Z
day: '13'
ddc:
- '530'
department:
- _id: GeKa
- _id: M-Shop
doi: 10.48550/arXiv.2306.07109
ec_funded: 1
external_id:
  arxiv:
  - '2306.07109'
keyword:
- Mesoscale and Nanoscale Physics
language:
- iso: eng
main_file_link:
- open_access: '1'
  url: https://doi.org/10.48550/arXiv.2306.07109
month: '06'
oa: 1
oa_version: Preprint
project:
- _id: 237E5020-32DE-11EA-91FC-C7463DDC885E
  call_identifier: H2020
  grant_number: '862046'
  name: TOPOLOGICALLY PROTECTED AND SCALABLE QUANTUM BITS
- _id: 237B3DA4-32DE-11EA-91FC-C7463DDC885E
  call_identifier: FWF
  grant_number: P32235
  name: Towards scalable hut wire quantum devices
- _id: bd8bd29e-d553-11ed-ba76-f0070d4b237a
  grant_number: P36507
  name: Merging spin and superconducting qubits in planar Ge
- _id: 34a66131-11ca-11ed-8bc3-a31681c6b03e
  grant_number: F8606
  name: 'Center for Correlated Quantum Materials and Solid State Quantum Systems:
    Conventional  and unconventional topological superconductors'
- _id: eb9b30ac-77a9-11ec-83b8-871f581d53d2
  name: Protected states of quantum matter
publication: arXiv
publication_status: draft
related_material:
  record:
  - id: '13286'
    relation: dissertation_contains
    status: public
status: public
title: Radio frequency driven superconducting diode and parity conserving  Cooper
  pair transport in a two-dimensional germanium hole gas
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: preprint
user_id: 2DF688A6-F248-11E8-B48F-1D18A9856A87
year: '2023'
...
---
_id: '9928'
abstract:
- lang: eng
  text: There are two elementary superconducting qubit types that derive directly
    from the quantum harmonic oscillator. In one, the inductor is replaced by a nonlinear
    Josephson junction to realize the widely used charge qubits with a compact phase
    variable and a discrete charge wave function. In the other, the junction is added
    in parallel, which gives rise to an extended phase variable, continuous wave functions,
    and a rich energy-level structure due to the loop topology. While the corresponding
    rf superconducting quantum interference device Hamiltonian was introduced as a
    quadratic quasi-one-dimensional potential approximation to describe the fluxonium
    qubit implemented with long Josephson-junction arrays, in this work we implement
    it directly using a linear superinductor formed by a single uninterrupted aluminum
    wire. We present a large variety of qubits, all stemming from the same circuit
    but with drastically different characteristic energy scales. This includes flux
    and fluxonium qubits but also the recently introduced quasicharge qubit with strongly
    enhanced zero-point phase fluctuations and a heavily suppressed flux dispersion.
    The use of a geometric inductor results in high reproducibility of the inductive
    energy as guaranteed by top-down lithography—a key ingredient for intrinsically
    protected superconducting qubits.
acknowledged_ssus:
- _id: NanoFab
- _id: M-Shop
acknowledgement: We thank W. Hughes for analytic and numerical modeling during the
  early stages of this work, J. Koch for discussions and support with the scqubits
  package, R. Sett, P. Zielinski, and L. Drmic for software development, and G. Katsaros
  for equipment support, as well as the MIBA workshop and the Institute of Science
  and Technology Austria nanofabrication facility. We thank I. Pop, S. Deleglise,
  and E. Flurin for discussions. This work was supported by a NOMIS Foundation research
  grant, the Austrian Science Fund (FWF) through BeyondC (F7105), and IST Austria.
  M.P. is the recipient of a Pöttinger scholarship at IST Austria. E.R. is the recipient
  of a DOC fellowship of the Austrian Academy of Sciences at IST Austria.
article_processing_charge: No
article_type: original
arxiv: 1
author:
- first_name: Matilda
  full_name: Peruzzo, Matilda
  id: 3F920B30-F248-11E8-B48F-1D18A9856A87
  last_name: Peruzzo
  orcid: 0000-0002-3415-4628
- first_name: Farid
  full_name: Hassani, Farid
  id: 2AED110C-F248-11E8-B48F-1D18A9856A87
  last_name: Hassani
  orcid: 0000-0001-6937-5773
- first_name: Gregory
  full_name: Szep, Gregory
  last_name: Szep
- first_name: Andrea
  full_name: Trioni, Andrea
  id: 42F71B44-F248-11E8-B48F-1D18A9856A87
  last_name: Trioni
- first_name: Elena
  full_name: Redchenko, Elena
  id: 2C21D6E8-F248-11E8-B48F-1D18A9856A87
  last_name: Redchenko
- first_name: Martin
  full_name: Zemlicka, Martin
  id: 2DCF8DE6-F248-11E8-B48F-1D18A9856A87
  last_name: Zemlicka
  orcid: 0009-0005-0878-3032
- first_name: Johannes M
  full_name: Fink, Johannes M
  id: 4B591CBA-F248-11E8-B48F-1D18A9856A87
  last_name: Fink
  orcid: 0000-0001-8112-028X
citation:
  ama: 'Peruzzo M, Hassani F, Szep G, et al. Geometric superinductance qubits: Controlling
    phase delocalization across a single Josephson junction. <i>PRX Quantum</i>. 2021;2(4):040341.
    doi:<a href="https://doi.org/10.1103/PRXQuantum.2.040341">10.1103/PRXQuantum.2.040341</a>'
  apa: 'Peruzzo, M., Hassani, F., Szep, G., Trioni, A., Redchenko, E., Zemlicka, M.,
    &#38; Fink, J. M. (2021). Geometric superinductance qubits: Controlling phase
    delocalization across a single Josephson junction. <i>PRX Quantum</i>. American
    Physical Society. <a href="https://doi.org/10.1103/PRXQuantum.2.040341">https://doi.org/10.1103/PRXQuantum.2.040341</a>'
  chicago: 'Peruzzo, Matilda, Farid Hassani, Gregory Szep, Andrea Trioni, Elena Redchenko,
    Martin Zemlicka, and Johannes M Fink. “Geometric Superinductance Qubits: Controlling
    Phase Delocalization across a Single Josephson Junction.” <i>PRX Quantum</i>.
    American Physical Society, 2021. <a href="https://doi.org/10.1103/PRXQuantum.2.040341">https://doi.org/10.1103/PRXQuantum.2.040341</a>.'
  ieee: 'M. Peruzzo <i>et al.</i>, “Geometric superinductance qubits: Controlling
    phase delocalization across a single Josephson junction,” <i>PRX Quantum</i>,
    vol. 2, no. 4. American Physical Society, p. 040341, 2021.'
  ista: 'Peruzzo M, Hassani F, Szep G, Trioni A, Redchenko E, Zemlicka M, Fink JM.
    2021. Geometric superinductance qubits: Controlling phase delocalization across
    a single Josephson junction. PRX Quantum. 2(4), 040341.'
  mla: 'Peruzzo, Matilda, et al. “Geometric Superinductance Qubits: Controlling Phase
    Delocalization across a Single Josephson Junction.” <i>PRX Quantum</i>, vol. 2,
    no. 4, American Physical Society, 2021, p. 040341, doi:<a href="https://doi.org/10.1103/PRXQuantum.2.040341">10.1103/PRXQuantum.2.040341</a>.'
  short: M. Peruzzo, F. Hassani, G. Szep, A. Trioni, E. Redchenko, M. Zemlicka, J.M.
    Fink, PRX Quantum 2 (2021) 040341.
corr_author: '1'
date_created: 2021-08-17T08:14:18Z
date_published: 2021-11-24T00:00:00Z
date_updated: 2026-04-15T06:41:46Z
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doi: 10.1103/PRXQuantum.2.040341
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title: 'Geometric superinductance qubits: Controlling phase delocalization across
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