- Abstract:
-
Initialization, two-spin coherent manipulation, and readout of a three-spin qubit are demonstrated using a few-electron triple quantum dot. The three-spin qubit is designed to allow all operations for full qubit control to be tuned via nearest-neighbor exchange interaction. Fast readout of charge states takes advantage of multiplexed reflectometry. Decoherence measured in a two-spin subspace is found to be consistent with predictions based on gate voltage noise with a uniform power spectrum. ...
Expand abstract - Publication status:
- Published
- Publisher copy:
- 10.1103/PhysRevB.82.075403
-
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- Journal:
- PHYSICAL REVIEW B
- Volume:
- 82
- Issue:
- 7
- Publication date:
- 2010-08-04
- DOI:
- EISSN:
-
1550-235X
- ISSN:
-
1098-0121
- URN:
-
uuid:a784754c-99d4-4337-a4df-b75a42dea0a7
- Source identifiers:
-
369716
- Local pid:
- pubs:369716
- Language:
- English
- Copyright date:
- 2010
Journal article
Coherent spin manipulation in an exchange-only qubit
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