Journal article
Sensitive radio-frequency measurements of a quantum dot by tuning to perfect impedance matching
- Abstract:
-
Electrical readout of spin qubits requires fast and sensitive measurements, which are hindered by poor impedance matching to the device. We demonstrate perfect impedance matching in a radio-frequency readout circuit, using voltage-tunable varactors to cancel out parasitic capacitances. An optimized capacitance sensitivity of 1.6 aF/√Hz is achieved at a maximum source-drain bias of 170-μV rootmean-square and with a bandwidth of 18 MHz. Coulomb blockade in a quantum-dot is measured in...
Expand abstract
- Publication status:
- Published
- Peer review status:
- Peer reviewed
Actions
Access Document
- Files:
-
-
(pdf, 2.7MB)
-
- Publisher copy:
- 10.1103/PhysRevApplied.5.034011
Why is the content I wish to access not available via ORA?
Bibliographic data (the information relating to research outputs) and full-text items (e.g. articles, theses, reports, etc.) arrive in ORA from several different sources. Unfortunately we are not able to make available the full-text for every research output.
Please contact the ORA team (
) if you have queries regarding unavailable content OR if you are aware of a full-text copy we can make available.
) if you have queries regarding unavailable content OR if you are aware of a full-text copy we can make available.
Content may be unavailable for the following four reasons
-
Version unsuitable
-
We have not obtained a suitable full-text for a given research output. See this page for more information.
-
Recently completed
-
Sometimes content is held in ORA but is unavailable for a fixed period of time to comply with the policies and wishes of rights holders.
-
Permissions
-
All content made available in ORA should comply with relevant rights, such as copyright. See this page for more information.
-
Clearance
-
Some thesis volumes scanned as part of the digitisation scheme funded by Dr Leonard Polonsky are currently unavailable due to sensitive material or uncleared third-party copyright content. We are attempting to contact authors whose theses are affected.
Alternative access to the full-text
You may be able to access the full-text directly from the publisher's website using the 'Publisher Copy' link in the 'Links & Downloads' box from a research output's ORA record page. This method may require an institutional or individual subscription to the journal/resource.
Authors
Funding
Defence Science and Technology Laboratory
More from this funder
Royal Academy of Engineering
More from this funder
European Union
More from this funder
Bibliographic Details
- Publisher:
- American Physical Society Publisher's website
- Journal:
- Physical Review Applied Journal website
- Volume:
- 5
- Pages:
- 034011
- Publication date:
- 2016-03-01
- DOI:
- ISSN:
-
2331-7019
- Source identifiers:
-
612122
Item Description
- Pubs id:
-
pubs:612122
- UUID:
-
uuid:650977d2-aa5d-465d-b60b-c6d906a5c804
- Local pid:
- pubs:612122
- Deposit date:
- 2016-03-29
Terms of use
- Copyright holder:
- American Physical Society
- Copyright date:
- 2016
- Notes:
- © 2016 American Physical Society
If you are the owner of this record, you can report an update to it here: Report update to this record