| Download | - View accepted manuscript: Role of metastable charge states in a quantum-dot spin-qubit readout (PDF, 990 KiB)
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| DOI | Resolve DOI: https://doi.org/10.1103/PhysRevB.92.125434 |
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| Author | Search for: Mason, J. D.; Search for: Studenikin, S. A.1; Search for: Kam, A.2; Search for: Wasilewski, Z. R.2; Search for: Sachrajda, A. S.1; Search for: Kycia, J. B. |
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| Affiliation | - National Research Council of Canada. Security and Disruptive Technologies
- National Research Council of Canada. Information and Communication Technologies
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| Format | Text, Article |
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| Abstract | Readout of a spin qubit in a lateral gate-defined quantum-dot device typically involves a charge detector and a spin-to-charge conversion technique employing spin blockade. We investigate alternative mechanisms for spin-to-charge conversion involving metastable excited charge states made possible by an asymmetry in the tunneling rates to the leads. This technique is used to observe Landau-Zener-Stückelberg oscillations of the S-T+ qubit within the (1,0) ground state region of the charge stability diagram. The oscillations are π phase shifted relative to those detected using the standard technique and display a nonsinusoidal waveform due to the increased relaxation time from the metastable state. |
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| Publication date | 2015-09-15 |
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| In | |
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| Language | English |
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| Peer reviewed | Yes |
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| NPARC number | 21276979 |
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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 | f4131486-e99f-4642-a8ac-5d1b8c2f8f6a |
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| Record created | 2015-11-10 |
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| Record modified | 2023-02-18 |
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