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This new computational framework streamlines the inclusion of phonon effects in high-throughput screening for spin-qubit materials, removing a traditional bottleneck in identifying viable quantum emitters. By deriving a compact closed-form formula, researchers can now efficiently evaluate color center properties across diverse material systems like 4H-SiC without sacrificing accuracy. This advancement directly accelerates the discovery process for solid-state qubits by simplifying complex lattice vibration calculations essential for maintaining optical coherence.
Predicting spin-qubit candidates now includes phonon effects
High-throughput screening for spin-qubit materials now benefits from a streamlined first-principles framework, simplifying calculations of phonon effects.
Researchers have derived a compact, tractable closed-form formula in the low-temperature limit for calculating non-radiative transition rates, streamlining the computational steps required to include phonon contributions to both radiative and non-radiative processes. Assessing color centers typically requires complex calculations incorporating phonon effects; this new method simplifies the original summation-based expression by replacing perturbative energy evaluations with a simpler computation. The methodology was successfully applied to impurity-vacancy defects in 4H-SiC, demonstrating its versatility for use with a broad range of material systems beyond silicon carbide. This advancement promises to accelerate the identification of promising solid-state spin defects for quantum technologies. A newly developed…
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