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Single-Shot Correlations and Two-Qubit Gate of Solid-State Spins.
- Source :
-
Science . 9/2/2011, Vol. 333 Issue 6047, p1269-1272. 4p. - Publication Year :
- 2011
-
Abstract
- Measurement of coupled quantum systems plays a central role in quantum information processing. We have realized independent single-shot read-out of two electron spins in a double quantum dot. The read-out method is all-electrical, cross-talk between the two measurements is negligible, and read-out fidelities are -86% on average. This allows us to directly probe the anticorrelations between two spins prepared in a singlet state and to demonstrate the operation of the two-qubit exchange gate on a complete set of basis states. The results provide a possible route to the realization and efficient characterization of multiqubit quantum circuits based on single quantum dot spins. [ABSTRACT FROM AUTHOR]
Details
- Language :
- English
- ISSN :
- 00368075
- Volume :
- 333
- Issue :
- 6047
- Database :
- Academic Search Index
- Journal :
- Science
- Publication Type :
- Academic Journal
- Accession number :
- 65644281
- Full Text :
- https://doi.org/10.1126/science.1209524