Time resolved control of electron tunnelling times and single-shot spin readout in a quantum dot

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DOIResolve DOI: http://doi.org/10.1016/j.physe.2009.11.143
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TypeArticle
Journal titlePhysica E: Low-Dimensional Systems and Nanostructures
ISSN1386-9477
Volume42
Issue4
Pages817820; # of pages: 4
SubjectAveraging technique; Charge detection; Full counting statistics; Quantum Dot; Quantum dot circuits; Quantum dot spins; Single shots; Single spin; Single-shot; Spin relaxation time; Three orders of magnitude; Time-resolved; Triple quantum; Tunnel barrier; Optical waveguides; Relaxation processes; Spin dynamics; Wind tunnels; Semiconductor quantum dots
AbstractWe are pursuing a capability to perform time resolved manipulations of single spins in quantum dot circuits involving more than two quantum dots. In this paper, we demonstrate full counting statistics as well as averaging techniques used to calibrate the tunnel barriers. We make use of this to implement the Delft protocol [1] for single shot single spin readout in a device designed to form a triple quantum dot potential. We are able to tune the tunnelling times over around three orders of magnitude. We obtain a spin relaxation time of 300 μ s at 10 T. Crown Copyright © 2009.
Publication date
LanguageEnglish
AffiliationNational Research Council Canada (NRC-CNRC); NRC Institute for Microstructural Sciences
Peer reviewedYes
NPARC number21274613
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Record identifier50df2425-790b-42a9-9d0b-11fb2c7ada34
Record created2015-03-18
Record modified2016-05-09
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