Molybdenum-Vacancy Complex in Zinc Oxide Shows Promise as Optically Addressable Spin Qubit
By
Rusty Flint
Kettled twice. Extra chewy, extra trustworthy.
Summary
Researchers at the University of Wisconsin-Madison have identified a molybdenum-vacancy complex within zinc oxide (denoted (MoZnvO)2+) that shows promise as an optically addressable spin qubit. The defect exhibits a spin-triplet ground state, visible-range optical transitions, and a small Huang-Rhys factor of ~5—significantly better than other zinc oxide defects. First-principles calculations suggest spin coherence times around 4 microseconds, potentially enabling high-fidelity, single-shot readout for quantum computing applications.
Key quotes
· 3 pulledThis newly predicted defect, denoted (MoZnvO)2+, possesses a spin-triplet ground state and visible-range optical transitions with a remarkably small Huang-Rhys factor of approximately 5
The team's first-principles calculations further suggest spin coherence times of around 4 microseconds
A defect with both robust optical and spin properties has not yet been identified in this material
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