| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevLett.108.226802 |
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| Author | Search for: Studenikin, S.A.1; Search for: Aers, G.C.1; Search for: Granger, G.2; Search for: Gaudreau, L.1; Search for: Kam, A.3; Search for: Zawadzki, P.1; Search for: Wasilewski, Z.R.3; Search for: Sachrajda, A.S.1 |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
- National Research Council of Canada. Measurement Science and Standards
- National Research Council of Canada. Information and Communication Technologies
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| Format | Text, Article |
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| Subject | Coherence time; Density matrix; Double quantum dots; Interference patterns; Quantum interference; Singlet state; Theoretical prediction; Two-qubit; Experiments; Quantum computers; Quantum interference devices; Semiconductor quantum dots; Current voltage characteristics |
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| Abstract | Qubits based on the singlet (S) and the triplet (T 0, T +) states in double quantum dots have been demonstrated in separate experiments. It has been recently proposed theoretically that under certain conditions a quantum interference could occur from the interplay between these two qubit species. Here we report experiments and modeling that confirm these theoretical predictions and identify the conditions under which this interference occurs. Density matrix calculations show that the interference pattern manifests primarily via the occupation of the common singlet state. The S/T 0 qubit is found to have a much longer coherence time as compared to the S/T + qubit. © 2012 American Physical Society. |
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| Publication date | 2012 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21269263 |
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| Export citation | Export as RIS |
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| Report a correction | Report a correction (opens in a new tab) |
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| Record identifier | 818ad410-f9af-483a-93fa-8feaf267f262 |
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| Record created | 2013-12-12 |
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| Record modified | 2020-04-21 |
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