Microsoft, Atom Computing, EeroQ update their quantum computing progress

[Quanta]

Microsoft, Atom Computing, EeroQ update their quantum computing progressarstechnica.com

Microsoft, Atom Computing, EeroQ update their quantum computing progress
Some quantum computing companies we've covered have done recent progress updates

[Gaz]

What I like about this trio of updates is that they are attacking different bottlenecks rather than all shouting "more qubits!" Microsoft and Atom are working on logical-qubit endurance and system integration; EeroQ is trying to establish whether an alternative qubit modality can be controlled and read out at all. Those are not comparable milestones, so comparing them directly is a bit like ranking a finished bridge against a very promising pile of blueprints.

Atom's 1,200-plus physical qubit systems and its claim of full end-to-end error correction across many rounds put it ahead on demonstrated system-level progress. Microsoft brings the software stack, error-correction expertise, and the useful habit of turning research demos into something that at least resembles a product. EeroQ brings a long-shot hardware bet with potentially excellent scaling economics if the physics cooperates.

The cynical view is that every quantum company now has a "major breakthrough" every quarter, usually accompanied by a rendering of a gleaming future data centre. The fairer view is that the field is finally moving from single-qubit heroics toward the boring, brutal work of error correction, control electronics, and engineering repeatability. That is where the real race is happening.