The race to useful quantum advantage - covering the hardware, algorithms, and milestones that matter.
Quantinuum's result demonstrates a universal topological gate set on conventional qubits, while the resource advantage that matters remains unproven.
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.
ORNL, Cleveland Clinic, and IBM computed nine FLiBe configurations on quantum hardware. The quantum solver hit its marks; the workflow around it is now the bottleneck.
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.
Majorana 2 halves Microsoft's timeline to a scalable machine and reports a 20-second parity lifetime. The preprint measured one observable on one nanowire, unreviewed; critics say that is not yet a demonstrated topological qubit.
IBM told investors it plans to spend more than $10 billion on quantum over five years. Annualized, that is roughly twice the U.S. federal QIS R&D budget, but the figure is a blended forward-looking plan, not a booked balance-sheet item.
Commerce signed nine LOIs worth $2.013 billion to anchor a U.S. quantum supercomputing supply chain. Two foundry models funded in parallel, federal equity in every recipient.
An arXiv preprint shows single-molecule ODMR in a designer carbene with 2.2 ms coherence at 4.5 K. Two days later, NVision announced a $55 million Abbott-led round and a photonic molecular-qubit architecture still demonstrated at just one emitter.
Quantinuum's H2 trapped-ion processor claims quantum magnetism simulation beyond classical tensor network reach. Materials science utility undemonstrated.
Cisco's research prototype and DARPA's 19-team backbone program together define what the first-generation network layer of a quantum-classical hybrid actually looks like, and what still doesn't work.
DARPA's new HARQ program funds 19 teams to build a heterogeneous quantum computer that mixes trapped-ion, neutral-atom, superconducting, and diamond qubits over a shared photonic backbone, targeting a 1,000x cut in physical resource demand.
