Molybdenum-Vacancy Complex in Zinc Oxide Shows Promise as Optically Addressable Spin Qubit
By
Rusty Flint
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 approximately 5—a significant improvement over other zinc oxide defects. First-principles calculations suggest spin coherence times of around 4 microseconds, indicating potential for high-fidelity, single-shot readout in quantum computing applications.
Source
bskyMolybdenum-Vacancy Complex in Zinc Oxide Shows Promise as Optically Addressable Spin Qubitquantumzeitgeist.comKey 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, a significant improvement over the range of 10, 30 observed in other zinc oxide defects.
The team's first-principles calculations further suggest spin coherence times of around 4 microseconds.
Researchers are investigating deep spin defects in zinc oxide as a potential qubit, though a defect with both robust optical and spin properties has not yet been identified in this material.
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