Source-linked quantum computing news and analysis on hardware, research, applications, post-quantum security, business and policy.
Publication date where available; source report or sources-checked date otherwise.
Qubits can accumulate errors while they wait. A surface-code experiment shows why the pauses between operations deserve more attention.
Experiments with light make the order of quantum operations a controllable resource. The gain is specific—and it is not time travel.
Qudits use more than two quantum levels. They offer a different way to build and measure quantum information—not unlimited readable data.
The investment story is getting louder. Useful comparisons still start with delivered hardware, customer workloads and the limits of each result.
Clavina combines programmable optics with specialized modules so one research platform can tackle different quantum tasks.
A milestone-based GlobalFoundries award puts fabrication, packaging and domestic supply chains at the center of the quantum race.
Superion 256 turns the spotlight from qubit counts to production costs, factory capacity and the deliveries promised for 2027.
A new hardware test asks whether a different kind of quantum computer can benefit from the same software ideas.
A new preprint brings a famous computing idea into a sensing experiment, with an important difference: the unknown signal helps set the search.
A new theoretical design tackles a basic problem: knowing when a useful pair of entangled photons is available.
The striking number concerns the work of designing a future quantum computer—not a quantum machine suddenly running every task faster.
A photonic experiment shows that the timing of a simple intervention can change when entanglement disappears.
Alpine’s new simulation project is an intriguing engineering experiment, not a proven shortcut to faster laps.
IonQ has put a number on a future cryptographic threat. The machine needed to carry it out does not exist today.
The LUMI-IQ plan is a reminder that the quality of quantum information matters as much as the headline qubit count.
The reported withdrawal puts the cost of building quantum machines in focus as rivals make bigger manufacturing bets.
A Pacific test used quantum sensing and magnetic maps to improve positioning against traditional backup navigation. The headline number needs one crucial qualifier.
The protein study now has a Gordon Bell finalist nod. Its most useful lesson is how quantum and classical machines divide the work.
A trapped ion shared a quantum connection across a 2.8-kilometer fiber loop carrying Ethernet and 5G traffic. The preprint tackles a practical networking problem.
Three final awards of up to $100 million each advance a funding framework that gives Washington a stake in quantum companies. The manufacturing targets explain why.
Post-quantum cryptography is moving from standards into browsers, cloud services and migration plans. Most people will never see the change - which is exactly the idea.
An algorithm can look spectacularly fast when the stopwatch starts late. Loading data and reading the answer can change the quantum-AI calculation.
Some error-corrected quantum computers need a steady supply of specially prepared states. A laboratory result shows one way to make them cleaner.
A 2026 experiment revisits a gravity-inspired model of information transfer. The surprise is real; a tunnel through space is not.
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A little perspective on a fast-moving field.
