A weekly review of published quantum research: technology trends, the global research footprint, and selected developments connected to public companies.
October 17–23, 2026
Below-threshold error correction on a rented IBM chip, with Quantinuum's color code for scale; reality checks on quantum advantage, from BosonSampling under photon loss to classical help for QuEra's Aquila; and links between machines from 80 centimeters to 17 kilometers.
October 10–16, 2026
A 1,265-ion crystal under coherent control, encoded addition that beats its physical circuit but discards attempts, second-long defect lifetimes, deterministic photon fusion and AI-designed quantum arithmetic.
October 3–9, 2026
A tenfold leaner memory from wired-together modules, error correction around a chip’s weak spots, a kilohertz link between two qubit technologies, and the real price of a usable magic state. With selected research from Google, IBM and IonQ.
September 26 – October 2, 2026
A claimed chemistry break-even on 120 qubits, a new classical-sampling limit for noisy unital circuits, and spin-qubit initialization without local reservoirs. With selected research from IBM, QuEra and RIKEN.
September 19–25, 2026
A quantum advantage claim run through a standard cloud queue, a fast-moving front in new error-correcting codes, and error correction moving into the hardware stack. With selected research from BlueQubit on IBM hardware, MIT and a photonic processor in orbit.
September 12–18, 2026
Wafer-scale statistics, a 90% optical memory and quantum signals sharing fiber with 10 Gbps traffic: this week’s research made deployment constraints measurable. With selected research from the University of Illinois, LuxQuanta and IBM.
September 5–11, 2026
The systems around the qubit come into focus: control, the cost of quantum algorithms, and the connections needed to scale. With selected research from IBM, NTT, and JPMorgan Chase.
No reviews match your search. Try a topic, company, or date.
