Building a silicon quantum computer chip atom by atom

https://phys.org/news/2022-01-silicon-quantum-chip-atom.html

"embedding single atoms in a silicon wafer one-by-one... potential to make quantum computers using the same methods that have given us cheap and reliable conventional devices containing billions of transistors. We could 'hear' the electronic click as each atom dropped into one of 10,000 sites in our prototype device. Our vision is to use this technique to build a very, very large-scale quantum device... Practical applications... optimizing timetables and finances, unbreakable cryptography"