Exec summary: For QC to “break RSA”, we need 7-8 orders of magnitude more physical qbits than we had in 2019.
Error correction cleverness and better controls have knocked down 3-4 of those. Which is impressive. Now just 1,000x - 100,000x more improvement needed. When you hear a QC advance, remember the questions are
how many logical qbits? (error correction is a bitch)
how long to get data into/out of the QC? (actually a major issue)
RetroFed
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This. Anyone interested in quantum computing owes it to themselves to watch this Caltech conference keynote:
Quantum Computing: Reality vs. Hype - John Preskill
Exec summary: For QC to “break RSA”, we need 7-8 orders of magnitude more physical qbits than we had in 2019.
Error correction cleverness and better controls have knocked down 3-4 of those. Which is impressive. Now just 1,000x - 100,000x more improvement needed. When you hear a QC advance, remember the questions are
how many logical qbits? (error correction is a bitch)
how long to get data into/out of the QC? (actually a major issue)