A French quantum computing company (Alice & Bob) claims a theoretical design where ~22,593 cat qubits could factor RSA-2048 in ~3.14 days using optimized Shor's algorithm, but current hardware reaches only 18 qubits—practical deployment is years away and multiple assumptions are involved.
Background
Quantum error correction requires exponentially more physical qubits than logical ones; cat qubits aim to reduce certain error rates but remain experimental. Post-quantum cryptography standardization (NIST PQC) is already underway to counter such theoretical threats.
- Source
- Lobsters
- Published
- Nov 6, 2026 at 01:22 AM
- Score
- 7.0 / 10