https://nanobotco.github.io/quantum-computing/2026-09-23T00:00:00ZNaNoBotCo https://nanobotco.github.io/quantum-computing/now/#2026-09-17-us-department-of-energy2026-09-17T00:00:00Z

DOE opened the Quantum Genesis Q Competition: up to 215 million dollars, up to ten teams, a 10-logical-qubit prototype within about a year and a 100-logical-qubit fault-tolerant machine by autumn 2028, with a 100 million dollar pool for finishers. The June target became a funded contest with dated deliverables.

https://nanobotco.github.io/quantum-computing/now/#2026-07-31-ionq2026-07-31T00:00:00Z

IonQ completed its 1.8 billion dollar purchase of SkyWater after US Federal Trade Commission clearance. The first quantum company to own its own semiconductor fab.

https://nanobotco.github.io/quantum-computing/now/#2026-07-20-google-quantum-ai2026-07-20T00:00:00Z

Google published in Nature a reinforcement-learning system that retunes Willow's control settings during error correction instead of pausing to recalibrate, making logical error rates about 3.5 times more stable and roughly 20 percent lower. Keeping an error-corrected machine tuned for days or weeks without a person recalibrating it is a requirement for long computations.

https://nanobotco.github.io/quantum-computing/now/#2026-06-24-henry-legg-university-of-st-andrews2026-06-24T00:00:00Z

Nature published a peer-reviewed 'Matters Arising' challenge finding two coding errors in Microsoft's topological gap protocol, including code that showed only the single most favourable data region; Microsoft called the bugs minor and stood by its results. The formal, journal-level version of the dispute that began in 2025. The Majorana claim stays unresolved.

https://nanobotco.github.io/quantum-computing/now/#2026-06-23-us-department-of-energy2026-06-23T00:00:00Z

DOE announced Quantum Genesis, a plan for a fault-tolerant, scientifically useful quantum computer with 'low hundreds' of logical qubits by 2028, plus a National Quantum Supercomputing User Facility. A federal deadline a year ahead of IBM's and Quantinuum's own 2029 targets.

https://nanobotco.github.io/quantum-computing/now/#2026-06-04-quantinuum2026-06-04T00:00:00Z

Quantinuum listed on Nasdaq as QNT, selling 28 million shares at 60 dollars to raise 1.68 billion dollars; Honeywell kept about 48 percent of the voting power. The largest quantum IPO to date, valuing the company at around 14 to 15 billion dollars.

https://nanobotco.github.io/quantum-computing/now/#2026-06-02-microsoft2026-06-02T00:00:00Z

Microsoft reported Majorana 2, swapping aluminium for lead in its device stack, with a doubled protective energy gap and 'parity lifetimes' over 20 seconds, up from milliseconds, in a company technical paper rather than a peer-reviewed journal. A large measured improvement. Critics said it does not answer whether the devices host Majorana states at all.

https://nanobotco.github.io/quantum-computing/now/#2026-05-21-flatiron-institute-and-boston-university2026-05-21T00:00:00Z

A new tensor-network method reproduced D-Wave's March 2025 'beyond classical' magnetic simulation on ordinary computers, including a laptop, published in Science. It overturns the D-Wave claim. Ordinary methods keep moving the line that quantum hardware has to beat.

https://nanobotco.github.io/quantum-computing/now/#2026-05-13-university-of-science-and-technology-of-china2026-05-13T00:00:00Z

Jiuzhang 4.0, a programmable light-based machine, sent 1,024 squeezed light pulses through an 8,176-path circuit and detected up to 3,050 photons in one run, published in Nature; the team says the hardest samples would take a supercomputer over 10^42 years. It answers the ordinary-computer methods that had undermined the earlier Jiuzhang results, and is the largest photonic sampling experiment to date.

https://nanobotco.github.io/quantum-computing/now/#2026-04-14-pasqal2026-04-14T00:00:00Z

Pasqal reported loading 1,024 atoms into a register with no gaps (under 0.5 percent defects), following a 506-atom register in April 2025. A full, gap-free array of over 1,000 atoms is the starting condition for running error-correction codes on that many qubits.

https://nanobotco.github.io/quantum-computing/now/#2026-03-27-xanadu2026-03-27T00:00:00Z

The photonic company Xanadu began trading on Nasdaq and the TSX as XNDU after a 3.1 billion dollar SPAC merger, with about 262 million dollars in net proceeds plus Canadian government investment. The first publicly listed photonic quantum company.

https://nanobotco.github.io/quantum-computing/now/#2026-03-24-google-quantum-ai2026-03-24T00:00:00Z

Google added a neutral-atom hardware programme, led by Adam Kaufman, alongside its superconducting Willow line, saying the two are complementary: one for deep circuits, the other for large qubit counts. The company behind the most-cited superconducting results is now hedging across two hardware families.

https://nanobotco.github.io/quantum-computing/now/#2026-03-10-darpa2026-03-10T00:00:00Z

DARPA opened a new Stage A round of the Quantum Benchmarking Initiative for companies not yet in the programme, noting 11 firms in Stage B and two in Stage C; a new director said it 'now seems likely' someone builds a utility-scale machine by 2033. The government's assessment shifted from whether to who.

https://nanobotco.github.io/quantum-computing/now/#2026-03-04-pasqal2026-03-04T00:00:00Z

Pasqal raised at least 340 million euros and agreed to merge with Bleichroeder Acquisition Corp. II for a Nasdaq listing at a 2 billion dollar valuation. Europe's leading neutral-atom company becomes publicly traded, with a Paris listing to follow.

https://nanobotco.github.io/quantum-computing/now/#2026-02-17-infleqtion2026-02-17T00:00:00Z

The neutral-atom company Infleqtion listed on the NYSE as INFQ through a merger with Churchill Capital Corp X, receiving over 550 million dollars. The first neutral-atom hardware company on a public market.

https://nanobotco.github.io/quantum-computing/now/#2026-02-01-iceberg-quantum2026-02-01T00:00:00Z

A Sydney start-up published an architecture using qLDPC codes that it estimates could break RSA-2048 with fewer than 100,000 physical qubits, about a tenth of Gidney's 2025 figure. The resource bar for the quantum threat moved down again, ahead of the hardware.

https://nanobotco.github.io/quantum-computing/now/#2026-01-27-university-of-chicago-stanford-mit-innsbruck-delft2026-01-27T00:00:00Z

A Science paper led by David Awschalom argued quantum technology has reached the point the transistor reached in the late 1940s: the physics works and the remaining problems are engineering, manufacturing and modular design. It framed 2026 as the start of a scaling era rather than a discovery era.

https://nanobotco.github.io/quantum-computing/now/#2026-01-26-ionq2026-01-26T00:00:00Z

IonQ agreed to buy the chip foundry SkyWater Technology for about 1.8 billion dollars in cash and stock; the purchase closed on 31 July 2026 after FTC clearance. A quantum company with its own US chip fab, shortening the loop between design and hardware.

https://nanobotco.github.io/quantum-computing/now/#2026-01-07-d-wave2026-01-07T00:00:00Z

D-Wave agreed to buy Quantum Circuits Inc., a Yale spin-out building error-corrected superconducting gate-model machines, for about 550 million dollars; the deal closed 20 January 2026. The annealing company now has a second hardware line and a gate-model roadmap.

https://nanobotco.github.io/quantum-computing/now/#2025-11-12-harvard-mit-and-quera2025-11-12T00:00:00Z

A 448-atom neutral-atom processor combined every ingredient of an error-corrected computer (entangling, logical operations, 'magic' states for universal computing, and error removal) and showed errors falling as the code grew, published in Nature. Lead author Dolev Bluvstein called it the first architecture that is 'conceptually scalable'; press reports describe 96 logical qubits on the device.

https://nanobotco.github.io/quantum-computing/now/#2025-11-12-ibm2025-11-12T00:00:00Z

IBM unveiled Nighthawk, a 120-qubit chip with a square grid layout supporting circuits of about 5,000 two-qubit operations, and Loon, a test chip carrying every hardware element its qLDPC error-correction design needs; it also joined an open 'quantum advantage tracker'. Nighthawk is the machine IBM expects to show community-verified advantage on by the end of 2026; Loon is the first physical piece of the Starling plan.

https://nanobotco.github.io/quantum-computing/now/#2025-11-06-darpa2025-11-06T00:00:00Z

DARPA moved 11 companies (Atom Computing, Diraq, IBM, IonQ, Nord Quantique, Photonic, Quantinuum, Quantum Motion, QuEra, Silicon Quantum Computing, Xanadu) to Stage B of its Quantum Benchmarking Initiative, a year-long review of their plans for a useful machine by 2033. The first independent government screening of which hardware approaches are credible. Google, Microsoft, PsiQuantum, Rigetti and D-Wave were not on the list.

https://nanobotco.github.io/quantum-computing/now/#2025-11-05-quantinuum2025-11-05T00:00:00Z

Quantinuum launched Helios, a 98-qubit trapped-ion computer with two-qubit accuracy of 99.921 percent and a new programming language, Guppy, and reported a materials simulation it says ordinary methods cannot match. The most accurate commercial machine on offer, and the first designed for real-time error correction.

https://nanobotco.github.io/quantum-computing/now/#2025-10-22-google-quantum-ai2025-10-22T00:00:00Z

Google's Willow chip ran an algorithm called Quantum Echoes that measures how a disturbance spreads through a quantum system, about 13,000 times faster than the best ordinary method, published in Nature. Unlike the earlier random-sampling benchmarks, the answer is a physical quantity another machine can check. Google calls it the first verifiable quantum advantage.

https://nanobotco.github.io/quantum-computing/now/#2025-10-21-ionq-oxford-ionics-team-2025-10-21T00:00:00Z

IonQ reported a two-qubit operation with better than 99.99 percent accuracy on trapped ions using electronic control, without first cooling the ions to their lowest motional state. Past the 'four nines' level that error-correction designs assume, and beyond Oxford Ionics' 2024 record of 99.97 percent.

https://nanobotco.github.io/quantum-computing/now/#2025-10-07-royal-swedish-academy-of-sciences2025-10-07T00:00:00Z

John Clarke, Michel Devoret and John Martinis won the Nobel Prize in Physics for 1984–85 experiments showing that a superconducting circuit big enough to hold in the hand tunnels and has discrete energy levels like an atom. Those experiments are the physical basis of the superconducting qubits used by Google, IBM and others.

https://nanobotco.github.io/quantum-computing/now/#2025-09-25-alice-bob2025-09-25T00:00:00Z

The company reported its cat qubits resisting bit-flip errors for 33 to 60 minutes, up from about seven minutes in 2024. Past the 13 minutes its 2030 machine design needs, and a sign these qubits shrug off cosmic-ray hits.

https://nanobotco.github.io/quantum-computing/now/#2025-09-24-caltech2025-09-24T00:00:00Z

A Caltech group trapped 6,100 caesium atoms in laser tweezers, held them in superposition for about 13 seconds and controlled single atoms with 99.98 percent accuracy, published in Nature. The largest qubit array assembled, and size did not cost quality. The atoms were not yet entangled.

https://nanobotco.github.io/quantum-computing/now/#2025-09-17-harvard-mit-and-quera2025-09-17T00:00:00Z

A neutral-atom system of more than 3,000 qubits ran continuously for over two hours, with lost atoms replaced on the fly by conveyor-belt lasers at up to 300,000 atoms a second, published in Nature. Atom loss had forced these machines to stop and reload; continuous operation removes that limit on run length.

https://nanobotco.github.io/quantum-computing/now/#2025-09-10-psiquantum2025-09-10T00:00:00Z

PsiQuantum raised 1 billion dollars at a 7 billion dollar valuation, led by BlackRock with NVIDIA participating, to build data-centre-scale photonic machines in Brisbane and Chicago. The largest single private round in the field; it funds the first two purpose-built quantum computing sites.