Electron spin manipulation and resonator readout in a double quantum dot nano-electromechanical system

Details Electron spin manipulation and resonator readout in a double quantum dot nano-electromechanical system Electron spin manipulation and resonator readout in a double quantum dot nano-electromechanical system

2007-09-05

arxiv.org/abs/0709.0593v2

Phys. Rev. Lett. 100, 136802 (2008)

Physics

Condensed Matter

Mesoscale and Nanoscale Physics

7 pages, fixed typos, updated figures 4 and 5

Scientific paper

10.1103/PhysRevLett.100.136802

Magnetically coupling a nano-mechanical resonator to a double quantum dot confining two electrons can enable the manipulation of a single electron spin and the readout of the resonator's natural frequency. When the Larmor frequency matches the resonator frequency, the electron spin in one of the dots can be selectively flipped by the magnetised resonator. By simultaneously measuring the charge state of the two-electron double quantum dots, this transition can be detected thus enabling the natural frequency of the mechanical resonator to be determined.

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