Disentangling the exchange coupling of entangled donors in the Si quantum computer architecture
Mesoscale and Nanoscale Physics
2009-11-07 v2 Quantum Physics
Abstract
We develop a theory for micro-Raman scattering by single and coupled two-donor states in silicon. We find the Raman spectra to have significant dependence on the donor exchange splitting and the relative spatial positions of the two donor sites. In particular, we establish a strong correlation between the temperature dependence of the Raman peak intensity and the interdonor exchange coupling. Micro-Raman scattering can therefore potentially become a powerful tool to measure interqubit coupling in the development of a Si quantum computer architecture.
Cite
@article{arxiv.cond-mat/0207455,
title = {Disentangling the exchange coupling of entangled donors in the Si quantum computer architecture},
author = {Belita Koiller and Xuedong Hu and H. D. Drew and S. Das Sarma},
journal= {arXiv preprint arXiv:cond-mat/0207455},
year = {2009}
}
Comments
Title changed. Other minor changes