A silicon spin vacuum: isotopically enriched ${}^{28}$silicon-on-insulator and ${}^{28}$silicon from ultra-high fluence ion implantation

Shao Qi Lim, Brett C. Johnson, Sergey Rubanov +7

Isotopically enriched silicon (Si) can greatly enhance qubit coherence times by minimizing naturally occurring ${}^{29}$Si which has a non-zero nuclear spin. Ultra-high fluence $^{28…