Precisely engineered single tin-vacancy color center quantum defects in diamond, an essential step toward scalable quantum technologies

https://www.eurekalert.org/news-releases/1087333

"ultrafast laser 2-step fabrication creates/ monitors individual Group-IV quantum defects in diamond that can store/ transmit information using quantum physics... stably connects information stored in electron spin with light particles... focused ion beam platform  directs individual tin ions into exact positions within diamond with nanometre accuracy... ultrafast laser pulse annealing gently excites tiny regions of diamond... in-situ control/ feedback during defect creation... secure communication, distributed quantum computing"