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Spin relaxation in semiconductor quantum rings and dots-a comparative study

Zipper, Elzbieta ; Kurpas, Marcin ; Sadowski, Janusz LU and Maska, Maciej M. (2011) In Journal of Physics: Condensed Matter 23(11).
Abstract
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.
Please use this url to cite or link to this publication:
author
; ; and
organization
publishing date
type
Contribution to journal
publication status
published
subject
in
Journal of Physics: Condensed Matter
volume
23
issue
11
publisher
IOP Publishing
external identifiers
  • wos:000287969200012
  • scopus:79952642524
  • pmid:21368358
ISSN
1361-648X
DOI
10.1088/0953-8984/23/11/115302
language
English
LU publication?
yes
id
e4e01a8f-933a-4e70-a7bb-7f039cf76986 (old id 1869143)
date added to LUP
2016-04-01 13:15:51
date last changed
2022-02-26 20:13:05
@article{e4e01a8f-933a-4e70-a7bb-7f039cf76986,
  abstract     = {{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.}},
  author       = {{Zipper, Elzbieta and Kurpas, Marcin and Sadowski, Janusz and Maska, Maciej M.}},
  issn         = {{1361-648X}},
  language     = {{eng}},
  number       = {{11}},
  publisher    = {{IOP Publishing}},
  series       = {{Journal of Physics: Condensed Matter}},
  title        = {{Spin relaxation in semiconductor quantum rings and dots-a comparative study}},
  url          = {{http://dx.doi.org/10.1088/0953-8984/23/11/115302}},
  doi          = {{10.1088/0953-8984/23/11/115302}},
  volume       = {{23}},
  year         = {{2011}},
}