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本帖最后由 aasa0001 于 2024-12-11 18:36 编辑
来源：google research blog
https://blog.google/technology/r ... illow-quantum-chip/
https://research.google/blog/mak ... or-correction-work/
High-light:
30年来首次达成"低于阈值"的目标 -- 系统总体错误率实现依规模指数级下降趋势。
意味着量子芯片能够靠扩大规模提升性能，而不会因为错误率发生性能倒缩。
Each time we increase our encoded qubits from a 3x3 to a 5x5 to a 7x7 lattice of physical qubits, the encoded error rate is suppressed by a factor of two. This demonstrates the exponential error suppression promised by quantum error correction, a nearly 30-year-old goal for quantum computing and the key element to unlocking large-scale quantum applications.
Low-light：
纠错结果需要传统计算机分析解读，显然会成为瓶颈。
Quantum error-corrected operations can be even slower, in part because we must also interpret measurements to identify errors. This is done by classical software called a quantum error decoder, which must process measurement information at the rate the quantum computer produces it.
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We measure a decoder delay time of 50 to 100 microseconds on our device, and anticipate it will increase at larger lattice sizes.
另外纠错有AI参与，不知道会不会有AI"脑补"成分 |
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310112100042806
发表于 2024-12-11 18:31
