Spin-orbit-driven coherent oscillations in a few-electron quantum dot

Stefan Debald; Clive Emary

doi:10.1103/PhysRevLett.94.226803

Spin-orbit-driven coherent oscillations in a few-electron quantum dot

Mesoscale and Nanoscale Physics 2009-11-10 v2

Authors: Stefan Debald , Clive Emary

View on arXiv ↗ PDF ↗ DOI ↗

Abstract

We propose an experiment to observe coherent oscillations in a single quantum dot with the oscillations driven by spin-orbit interaction. This is achieved without spin-polarised leads, and relies on changing the strength of the spin-orbit coupling via an applied gate pulse. We derive an effective model of this system which is formally equivalent to the Jaynes-Cummings model of quantum optics. For parameters relevant to a InGaAs dot, we calculate a Rabi frequency of 2 GHz.

Keywords

spin qubit spin-orbit coupling quantum spin systems

Cite

@article{arxiv.cond-mat/0410714,
  title  = {Spin-orbit-driven coherent oscillations in a few-electron quantum dot},
  author = {Stefan Debald and Clive Emary},
  journal= {arXiv preprint arXiv:cond-mat/0410714},
  year   = {2009}
}

Comments

4 pages, 3 figures Revised version: additional results included on page 4. Fig 3c replaced accordingly. Numerical error in predicted Rabi frequency corrected

Spin-orbit-driven coherent oscillations in a few-electron quantum dot

Abstract

Keywords

Cite

Comments

Related papers