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> Rigetti expects to scale its quantum computers from 80 qubits in 2021, to 1,000 qubits in 2024, and to 4,000 qubits in 2026. Is that realistic at all? From w
by the_duke 5y ago
> Rigetti expects to scale its quantum computers from 80 qubits in 2021, to 1,000 qubits in 2024, and to 4,000 qubits in 2026.
Is that realistic at all? From what I've read on the subject, everyone seems to have trouble scaling up.
- krastanov 5y agoHaving a device with 1000 transmons does not seem too crazy to me. But I would be deeply impressed if the quality of these 1000 transmons is not lower than the quality of the current 80. And keep in mind that either way these will be "physical" qubits, not error protected logical qubits. It takes hundreds or thousands of noisy physical qubits to make reliable logical qubits (with error correcting codes).
- wadeparzival 5y agoIBM has a similar timeline in its roadmap, going from 65 qubits in 2020 to 1,121 qubits in 2023. From their blog [1], it seems like scaling beyond 1,000 will be the real challenge. [1] https://research.ibm.com/blog/ibm-quantum-roadmap https://research.ibm.com/blog/ibm-quantum-roadmap