It was recalled that, in order to advance quantum computation, a NOT processor

was now urgently sought. A candidate for this was a nitrogen-vacancy center

which was associated with an additional N atom: called an NV–N center. Making

use of a classical molecular dynamics simulation of N ion implantation into pure

diamond with an energy of 200eV, the crystallographic structure of such NV–N

centers was examined. However, at 30K, most of theimplanted N atoms became

interstitials, making it difficult to identify even the nitrogen-vacancy centers.

What is the Significance of Nitrogen-Vacancy Centers in the Doping into

Diamond? S.T.Nakagawa, H.Hashimoto, H.Kanda, A.Okamoto, M.Ohishi,

H.Saito, G.Betz: Nuclear Instruments and Methods in Physics Research B, 2009,

267[8-9], 1226-8