Time Resolved Control of Electron Tunnelling Times and Single-shot Spin Readout in a Quantum Dot

L. Gaudreau; A. Kam; J. B. Kycia; S. Studenikin; G. Granger; P. D. Mason; P. Zawadzki; A. S. Sachrajda

doi:10.1016/j.physe.2009.11.143

Time Resolved Control of Electron Tunnelling Times and Single-shot Spin Readout in a Quantum Dot

Mesoscale and Nanoscale Physics 2015-05-14 v2

Authors: L. Gaudreau , A. Kam , J. B. Kycia , S. Studenikin , G. Granger , P. D. Mason , P. Zawadzki , A. S. Sachrajda

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Abstract

We 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 we use to calibrate the tunnel barriers. We make use of this to implement the Delft protocol 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 microseconds at 10T.

Keywords

quantum dot spin readout tunnelling time full counting statistics triple quantum dot spin relaxation time

Cite

@article{arxiv.0910.2520,
  title  = {Time Resolved Control of Electron Tunnelling Times and Single-shot Spin Readout in a Quantum Dot},
  author = {L. Gaudreau and A. Kam and J. B. Kycia and S. Studenikin and G. Granger and P. D. Mason and P. Zawadzki and A. S. Sachrajda},
  journal= {arXiv preprint arXiv:0910.2520},
  year   = {2015}
}

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Submitted to EP2DS 2009 Conference Proceedings

Time Resolved Control of Electron Tunnelling Times and Single-shot Spin Readout in a Quantum Dot

Abstract

Keywords

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