Quantum Error Correction
Articles (9)
Quandela and NVIDIA Draw the Control Boundary for a Photonic QPU on NVQLink
The joint white paper says the GPU never controls the quantum process and quotes an error-correction budget Quandela's photonic roadmap does not yet reach.
Reports Say NEC Ended Quantum Machine Development. Fujitsu Appears on Japan's New Moonshot Roster.
Four Japanese outlets report that NEC stopped building quantum machines in March. NEC has not confirmed the halt; a new Moonshot roster lists Fujitsu, not NEC.
Japan's Shunkai Project Sets a 10,000-Physical-Qubit Goal for 2031
IMS says its neutral-atom system will begin at approximately 50 qubits and scale to 500. Its March 2031 goal: 10,000 physical qubits with error detection and correction, no logical-qubit count.
Quantum Computers Are Moving On-Premises. The Deals Are Not All the Same.
A six-qubit ESA testbed, a 150-qubit EuroHPC purchase, a neutral-atom roadmap in Illinois and an NSF-funded integration platform share a location strategy, not a common level of readiness.
Silicon spin gains manufacturing evidence while demonstrated scale stays small
July brought integrated cryogenic control and new process-development commitments. HRL's chip can host 18 qubits, but its largest published circuit used seven.
A universal anyon gate set lands on trapped ions, not topological hardware
Quantinuum's result demonstrates a universal topological gate set on conventional qubits, while the resource advantage that matters remains unproven.
The Incredible Shrinking Qubit Count: What Oratomic's $300M Neutral-Atom Bet Is Wagering On
On paper, the qubits to break RSA-2048 fell from a million to tens of thousands in a year, but the smaller machines trade the saving for weeks of runtime. Oratomic raised $300M to build one.
DOE Wants Fault-Tolerant Quantum by 2028. The Roadmaps Show How Hard That Target Is to Define.
Logical qubit' means something different on every vendor roadmap, and DOE's 2028 target doesn't yet say which one counts. A 90-day specifications release this fall settles it.
The Cambrian explosion in quantum error correction
Phantom codes, QLDPC codes, iceberg codes, cat qubits, neural decoders. Five years ago, surface codes were the only game in town. Now there's a genuine competition, and it might get us to fault tolerance faster than any single approach could.