Dispersive charge sensing is realized in hybrid semiconductor-superconductor nanowires in gate-defined single- and double-island device geometries. Signal-to-noise ratios (SNRs) were measured in both the frequency and time domains. Frequency-domain measurements were carried out as a function of frequency and power and yield a charge sensitivity of 1 × 10–3 e/ for an ∼11 MHz measurement bandwidth. Time-domain measurements yield SNR > 1 for a 20 μs integration time. At zero magnetic field, photon-assisted tunneling was detected dispersively in a double-island geometry, indicating coherent hybridization of the two superconducting islands. At an axial magnetic field of 0.6 T, subgap states are detected dispersively, demonstrating the suitability of the method to sensing in the topological regime.
Skip Nav Destination
Dispersive sensing in hybrid InAs/Al nanowires
,
,
,
,
,
,
Article navigation
2 September 2019
Research Article|
September 03 2019
Dispersive sensing in hybrid InAs/Al nanowires
Available to Purchase
Deividas Sabonis
;
Deividas Sabonis
a)
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
Search for other works by this author on:
Eoin C. T. O'Farrell;
Eoin C. T. O'Farrell
a)
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
Search for other works by this author on:
Davydas Razmadze;
Davydas Razmadze
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
Search for other works by this author on:
David M. T. van Zanten;
David M. T. van Zanten
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
Search for other works by this author on:
Judith Suter;
Judith Suter
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
Search for other works by this author on:
Peter Krogstrup;
Peter Krogstrup
2
Microsoft Quantum Materials Lab and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Kanalvej 7, 2800 Kongens Lyngby, Denmark
Search for other works by this author on:
Charles M. Marcus
Charles M. Marcus
b)
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
Search for other works by this author on:
Deividas Sabonis
1,a)
Eoin C. T. O'Farrell
1,a)
Davydas Razmadze
1
David M. T. van Zanten
1
Judith Suter
1
Peter Krogstrup
2
Charles M. Marcus
1,b)
1
Microsoft Quantum Lab Copenhagen and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Universitetsparken 5, 2100 Copenhagen, Denmark
2
Microsoft Quantum Materials Lab and Center for Quantum Devices, Niels Bohr Institute, University of Copenhagen
, Kanalvej 7, 2800 Kongens Lyngby, Denmark
a)
Contributions: D. Sabonis and E. C. T. O'Farrell contributed equally to this work.
b)
Electronic mail: [email protected]
Appl. Phys. Lett. 115, 102601 (2019)
Article history
Received:
June 25 2019
Accepted:
July 25 2019
Citation
Deividas Sabonis, Eoin C. T. O'Farrell, Davydas Razmadze, David M. T. van Zanten, Judith Suter, Peter Krogstrup, Charles M. Marcus; Dispersive sensing in hybrid InAs/Al nanowires. Appl. Phys. Lett. 2 September 2019; 115 (10): 102601. https://doi.org/10.1063/1.5116377
Download citation file:
Pay-Per-View Access
$40.00
Sign In
You could not be signed in. Please check your credentials and make sure you have an active account and try again.
Citing articles via
Roadmap on photonic metasurfaces
Sebastian A. Schulz, Rupert. F. Oulton, et al.
Shining light in a heartbeat: Controlling cardiac bioelectricity with membrane-targeted photoswitches
Chiara Florindi, Giulia Simoncini, et al.
First-principles study of defects and doping limits in CaO
Zhenkun Yuan, Geoffroy Hautier
Related Content
Multiple topological phase transitions unveiling gapless topological superconductivity in magnet/unconventional superconductor hybrid platform
Appl. Phys. Lett. (May 2024)
Measuring hole spin states of single quantum dot in germanium hut wire
Appl. Phys. Lett. (March 2017)
First principles molecular dynamics study of CdS nanostructure temperature-dependent phase stability
Appl. Phys. Lett. (July 2008)
A perspective on semiconductor-based superconducting qubits
Appl. Phys. Lett. (December 2020)
Hole mobility in Ge/Si core/shell nanowires: What could be the optimum?
Appl. Phys. Lett. (December 2014)