New super-pure silicon chip opens path to powerful quantum computers

https://phys.org/news/2024-05-super-pure-silicon-chip-path.html

"phosphorous atom qubits implanted into pure stable silicon crystals house, protect qubits sustaining quantum coherence much longer, enabling complex calculations, greatly reduced need for error correction... directed focused, pure silicon-28 high-speed beam at silicon chip so silicon-28 gradually replaced silicon-29 reducing silicon-29 from 4.5% to 2 ppm (0.0002%)... goal to demonstrate sustaining quantum coherence for many qubits simultaneously in 30 qubit computer... highly accurate, scalable quantum computers"

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