Quantum (Inspired) Computing at Fujitsu
summary
Fujitsu outlines a concrete stack: a 64-qubit superconducting transmon chip co-developed with RIKEN that uses backside coaxial wiring to reduce crosstalk and tile unit cells, qubit lifetimes ~30 µs, single-qubit rotations ~10 ns and two-qubit gates ~100–150 ns, plus a quantum circuit simulator handling up to 40 qubits. A proposed partially fault-tolerant architecture claims useful encoded workloads with ~10,000 physical qubits. Commercial results: Digital Annealer wins include bank feature‑selection and a routing case cutting transport costs ~5%, and two Deutsche Telekom patents granted.
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chapters (14)
- 0:00Fujitsu’s quantum strategy
- 1:09Technology vision and focus
- 2:33Quantum challenges and solutions
- 4:03Collaborations in hardware/software
- 5:49Fault-tolerant ops in diamond
- 6:51Qubit overhead reduction
- 9:17Superconducting qubit architecture
- 11:4764-qubit chip design
- 13:33Next steps in scaling
- 14:37Quantum-inspired real solutions
- 15:43Combinatorial optimization success
- 17:07Quantum and quantum-inspired synergy
- 18:12Future outlook and collaboration
- 19:19Q&A on error rates
