Quantum Computing Weekly Round-Up: Week Ending September 26, 2026

Quantum Computing Weekly Round-Up just watched Infleqtion lock 30 logical qubits onto 80 physical atoms, IonQ roll Superion 256 into NVIDIA’s research hall, and Berlin fund a 1,000-qubit ion-trap pilot line. Taiwan is writing a 150-qubit RFP. Miss a link this week and you will brief last Friday’s stack.Infleqtion said Sept. 24 that its Sqale machine entangled 30 logical qubits with only 80 physical atoms, a ratio that would have looked like science fiction two years ago.

The Infleqtion Sqale note credits an AI-found gate that halves the physical operations for a key logical step, with a signal about 1,000 times louder than the noise. One day earlier, IonQ’s decoder paper claimed the first end-to-end real-time error decoder on a single off-the-shelf CPU, stretching simulated circuits of 408 logical qubits by as little as 0.02 percent across 31.5 million operations. The same firm then booked the first QPU chair at NVIDIA’s Accelerated Quantum Research Center, parking Superion 256 beside a GB200 NVL72 over NVQLink in the IonQ NVIDIA filing. CEO Niccolo de Masi told MeriTalk this week that full fault tolerance sits two years from enterprise and allied-government budgets, which is either a sales pitch or a calendar you should screenshot.Taiwan’s National Science and Technology Council is lining up a hybrid host with at least 150 physical qubits, a five-year, NT$3.76 billion ($116.58 million) package that The Qubit Report tracked from the NCHC RFI. South Korea’s KRISS published a dual-track bet: a 100-qubit superconducting machine and a 1,000-qubit neutral-atom box by 2029, plus a K-Quantum Foundry goal for 2035, according to the BigGo Korea brief. Japan flipped on Shunkai, a full-stack room-temperature neutral-atom system starting near 50 qubits with a March 2031 aim of 10,000 physical qubits, as Live Science reported. Across the Florida Strait, FIU claimed Miami’s first on-campus machine when it booked an IonQ Superion 256 for faculty and 55,000 students in the FIU campus release.Germany selected a QUDORA-led consortium for Project NFQC-1k, a €122 million push toward a 1,000 physical-qubit ion-trap demonstrator with at least 50 logical qubits and a QPU pilot line, per the QUDORA award note. Partners include TU Braunschweig, Leibniz University Hannover, PTB, NXP, Forschungszentrum Jülich, and AQT Germany. Separately, planqc’s LOGIQC team landed one of six slots in the country’s Quantum Computing Competition, a contest with up to €640 million on the table for hardware-efficient logical operations on ytterbium atoms, as the planqc LOGIQC post spelled out. On the commercial side, QuEra and Hewlett Packard Enterprise agreed to park neutral-atom fault-tolerant systems next to HPE Cray boxes, with Libra pitched above 256 logical qubits, in the QuEra HPE release.PQShield’s Ali El Kaafarani used a World Economic Forum byline to tell grid operators that 77 percent of utilities already ate attacks on unpatched legacy kit in 2025, and that PQC on 30-year substations is not a software patch, in the PQShield energy essay. India’s QNu Labs launched QShield 2.0 as the engine for a National Cryptographic Assessment and Assurance Framework, with Bengaluru ministers in the room for the QNu QShield launch. China’s first NGCC PQC round took 104 public findings in three days, including practical breaks of Tins, Facto-DSA, MoFang, and Neulaser, according to the PostQuantum NGCC tally. Bitcoin developers are no longer pretending otherwise. VanEck’s Matthew Sigel told Bitcoin Magazine that a consortium including BlackRock and Fidelity is funding BIP-360 work. Aviatrix shipped Harvest and Decrypt Protection with ML-KEM on the control plane in its Aviatrix PQC launch, and Quantum Xchange put Phio TX on Carahsoft’s public-sector contracts in the Carahsoft partnership note.CUbIQ and Coherent stuffed CV-QKD into a QSFP-28 pluggable and ran it across an NVIDIA DGX Spark link, claiming a 100-fold shrink versus rack QKD in the PhotonDelta demo writeup. Babcock and Arqit moved mortar-system traffic from Millbrook to a deployed GDAMS without inline boxes at DVD 2026, per the Babcock Arqit demo. Qunnect published entanglement checks that go past key distribution and listed DARPA, In-Q-Tel, AFRL, NIST, and DOE work in the Qunnect security paper. In Nanjing, a team showed asynchronous measurement-device-independent conference keys out to about 59.6 dB of loss, covered by the EurekAlert conferencing brief.EigenQ closed a $45 million convertible note with $22.5 million funded up front as it aims at public markets, per the HPCwire EigenQ item. WISeKey, SEALSQ, and the Canton of Jura signed an MoU for a Swiss post-quantum semiconductor center with an indicative CHF 40-60 million over six years in the WISeKey Jura MoU. QED-C’s global survey of 160 firms in 15 headquarters countries found 90 percent buying from a foreign supplier and customers in 49 countries, detailed in the QED-C supply study. CGI paired with D-Wave to push Advantage2 into rail, retail, and grid planning in the CGI D-Wave pact, while D-Wave added former BNP Paribas CIO Bernard Gavgani to its board and cybersecurity committee in the D-Wave board release.Singapore’s Centre for Quantum Technologies built a lutetium optical clock with 1 × 10^-19 uncertainty and compared two units at 5.7 × 10^-19, which NUS called the tightest clock comparison yet in the NUS clock story. SMART Photonics and GlobalFoundries opened an indium-phosphide-on-silicon foundry path aimed at second-half 2027 in the SMART Photonics note. A JILA and KIST team routed diamond silicon-vacancy spins through titanium-dioxide circuits without the usual loss penalty, per the EurekAlert photonics paper. Microsoft’s Majorana 2 chip, as GCN described it, posted mean qubit lifetimes of 20 seconds and a claimed four-year pull-in on the scalable-machine date. Saarbrücken’s Qruise shipped toolset v3 with a Julia engine it says is more than four times faster for error-correction unit cells in the QruiseML v3 note.Quantum Computing Weekly Round-Up this week is the moment logical qubits, national RFPs, and post-quantum procurement stopped arriving as separate beats and started arriving as one calendar.—See the full week of articles in the Weekly Archives Pages and the Weekly Round-Ups found at The Qubit Report.Infleqtion entangled 30 logical qubits on 80 physical atoms aboard Sqale, while Germany selected a QUDORA-led consortium for a €122 million 1,000-qubit trapped-ion pilot line. QWC 2026 starts a three-day run at The Hotel at the University of Maryland, with Day 1 built around an international forum, bootcamps, a startup IonQ will put a Superion 256 at NVIDIA’s Accelerated Quantum Research Center, with reporting pointing to a 2027 install next to a GB200 NVL72. 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