Follow quantum chips, qubits and the engineering behind them. Reports explain what was tested, what changed and what still needs work.
Publication date where available; source report or sources-checked date otherwise.
Peer-reviewed measurements link a semiconductor hole spin to 1.55-micrometre photons, but this remains an interface experiment—not a network node.
A new Japanese roadmap spells out the light sources, detectors and control hardware that must improve before photonic systems can scale.
Superconducting rails help detectors reach 0.1 millimetres in width while reducing false signals—a useful step toward larger optical sensors.
A planned Danish foundry would give quantum-hardware teams another place to manufacture their chips.
The newly inaugurated quantum computer is operational, with qualification, broader access and supercomputer integration still progressing.
Nighthawk r2 attacks the pause between runs. Its three headline numbers describe different things, and should stay that way.
A dedicated testbed recovered in 695 of 700 timed trials, according to QuEra's account of its Claude-assisted control pilot.
Box-shaped cryostats offer shorter interconnect paths and more wiring room for future multi-processor quantum systems.
A research workflow trains a transformer to propose molecular state-preparation circuits, with selected circuits tested on Helios hardware.
A photonic integrated circuit produced four rubidium-atom traps, with an approximately 27.5-second lifetime reported by the company.
A Nature study reports 11-fold to 800-fold improvements against selected physical circuit baselines using correction, detection and postselection.
A neutral-atom preprint tracks logical information through repeated measurement, lost-atom replacement and reservoir reloading.
An indium-arsenide and lead device shows long parity-switching times in a materials experiment supporting Microsoft's Majorana 2 announcement.
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A little perspective on a fast-moving field.
