Symmetry-protected superexchange yields long coherence times in silicon rare-earth spin qubitsRemoveMichael Abu-Omar, Eric Helgemo, Mohamad Niknam, Robert N. Schwartz, Susumu Takahashi, Aniruddha Chakraborty, Jayasimha Atulasimha, and Louis-S. BouchardPhys. Rev. B 113, 174440 (2026)
