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Charge-state conditional operation of a spin qubit.

Abstract:

We report coherent operation of a singlet-triplet qubit controlled by the spatial arrangement of two confined electrons in an adjacent double quantum dot that is electrostatically coupled to the qubit. This four-dot system is the specific device geometry needed for two-qubit operations of a two-electron spin qubit. We extract the strength of the capacitive coupling between qubit and adjacent double quantum dot and show that the present geometry allows fast conditional gate operation, opening ...

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Publication status:
Published

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Institution:
University of Oxford
Division:
MPLS
Department:
Materials
Role:
Author
Journal:
Physical Review Letters More from this journal
Volume:
107
Issue:
3
Pages:
030506
Publication date:
2011-07-01
DOI:
EISSN:
1079-7114
ISSN:
0031-9007
Language:
English
Pubs id:
pubs:369714
UUID:
uuid:0c01b345-0436-4849-b171-51ce2b57ad53
Local pid:
pubs:369714
Source identifiers:
369714
Deposit date:
2013-11-16

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