Spin relaxation in semiconductor quantum rings and dots-a comparative study
Publikation/Tidskrift/Serie: Journal of Physics: Condensed Matter
Dokumenttyp: Artikel i tidskrift
Förlag: IOP Publishing
We calculate spin relaxation times due to spin-orbit-mediated electron-phonon interactions for experimentally accessible semiconductor quantum ring and dot architectures. We elucidate the differences between the two systems due to different confinement. The estimated relaxation times (at B = 1 T) are in the range between a few milliseconds to a few seconds. This high stability of spin in a quantum ring allows us to test it as a spin qubit. A brief discussion of quantum state manipulations with such a qubit is presented.
- Natural Sciences
- Physical Sciences
- ISSN: 1361-648X