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

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

2004-10-27

arxiv.org/abs/cond-mat/0410714v2

Phys. Rev. Lett. 94, 226803 (2005)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

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

Scientific paper

10.1103/PhysRevLett.94.226803

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.

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