Electron spin manipulation and resonator readout in a double quantum dot nano-electromechanical system
arXiv:0709.0593 · doi:10.1103/PhysRevLett.100.136802
Abstract
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.
7 pages, fixed typos, updated figures 4 and 5
References in corpus (7)
- Single-shot read-out of an individual electron spin in a quantum dot
- Driven coherent oscillations of a single electron spin in a quantum dot
- Coherent control of a single electron spin with electric fields
- Bose-Einstein condensate coupled to a nanomechanical resonator on an atom chip
- Singlet-triplet decoherence due to nuclear spins in a double quantum dot
- Hyperfine-mediated gate-driven electron spin resonance
- Detection of single electron spin resonance in a double quantum dot