Interplay between Zeeman Coupling and Swap Action in Spin-based Quantum Computer Models: Error Correction in Inhomogeneous Magnetic Fields
Mesoscale and Nanoscale Physics
2009-10-31 v2 Quantum Physics
Abstract
We consider theoretically the interplay between Zeeman coupling and exchange-induced swap action in spin-based quantum dot quantum computer models in the presence of inhomogeneous magnetic fields, which are invariably present in real systems. We estimate quantitatively swap errors caused by the inhomogeneous field, establishing that error correction would, in principle, be possible in the presence of non-uniform magnetic fields in realistic structures.
Cite
@article{arxiv.cond-mat/0004459,
title = {Interplay between Zeeman Coupling and Swap Action in Spin-based Quantum Computer Models: Error Correction in Inhomogeneous Magnetic Fields},
author = {Xuedong Hu and Rogerio de Sousa and S. Das Sarma},
journal= {arXiv preprint arXiv:cond-mat/0004459},
year = {2009}
}
Comments
Revised version. To appear in Phys. Rev. Lett