Level 1 - Absolute Beginner

A quantum computer is a very special kind of computer. It uses tiny pieces of physics called qubits to do hard math. Normal computers use bits, but quantum computers use qubits, which can hold more information.

A company called Quantinuum makes quantum computers. Their newest one is called Helios. Helios has 98 qubits, and it is very accurate. It does not make many mistakes.

On August 11, 2026, Quantinuum said Helios will work with Oracle. Oracle has big cloud computers that many companies use. Now, Oracle customers can use Helios too, over the internet.

This means companies will not need to buy their own quantum computer. They can just rent time on Helios through Oracle's cloud. This is good news for people who study quantum computers.

quantum computer

a special kind of computer that uses tiny particles to solve very hard problems

qubit

the basic unit of information in a quantum computer, like a bit in a normal computer

accurate

correct, with very few mistakes

cloud

computers on the internet that people can use from far away

deploy

to set up and start using something

rent

to pay to use something for a while, instead of buying it

hardware

the physical parts of a computer, like machines and chips

partnership

an agreement between two companies to work together

Level 2 - Elementary

On August 11, 2026, the quantum computing company Quantinuum announced a new partnership with Oracle. Under the deal, Quantinuum's most advanced quantum computer, called Helios, will be placed inside a US-based Oracle Cloud Infrastructure data center.

Helios is a trapped-ion quantum computer, which means it uses charged atoms held in place by electric fields to store information. It has 98 physical qubits and first became available commercially in November 2025. Quantinuum was formed by merging Honeywell's quantum unit with a company called Cambridge Quantum, and it had a large $1.68 billion stock market listing in June 2026.

In tests, Helios managed to create 48 logical qubits using only its 98 physical qubits. A logical qubit is built by combining several physical qubits so that errors can be caught and fixed, making the result more reliable. Reaching a ratio of about 2-to-1 between physical and logical qubits is something Quantinuum says no other commercial quantum computer has done before, and it is four times better than Quantinuum's previous machine, called H2.

Helios also reached an average accuracy, called fidelity, of 99.921 percent on its basic two-qubit operations, higher than the widely used 99.9 percent benchmark. Because of this partnership, Oracle's business customers will be able to rent access to Helios over the cloud instead of buying and maintaining their own quantum hardware.

trapped-ion

a type of quantum computer that uses charged atoms held in place by electric fields

logical qubit

a reliable unit of quantum information built by combining several physical qubits to fix errors

fidelity

a measure of how accurately an operation is performed without errors

benchmark

a standard level used to compare and judge performance

merge

to combine two or more companies into one

commercially

in a way that is available to be bought or used by paying customers

infrastructure

the basic systems and equipment needed for something to work, like data centers or networks

reliable

able to be trusted to work correctly

Level 3 - Intermediate

Quantinuum, the quantum computing company formed from the merger of Honeywell's quantum unit and Cambridge Quantum, announced on August 11, 2026 that its flagship system, Helios, will be deployed inside a US-based Oracle Cloud Infrastructure data center. The arrangement will allow Oracle customers to rent hybrid quantum-plus-AI computing power directly through the cloud, rather than acquiring and maintaining specialized quantum hardware of their own.

Helios is Quantinuum's third-generation commercial quantum computer, a trapped-ion machine that launched commercially in November 2025 with 98 physical qubits. What has drawn attention within the industry is not the qubit count itself but what Quantinuum was able to do with it: demonstrations showed Helios generating 48 error-corrected logical qubits, each built by combining multiple physical qubits so that errors occurring in individual qubits can be detected and corrected. An overhead ratio of roughly 2-to-1 between physical and logical qubits is, according to Quantinuum, the first time a commercial quantum system has reached that level, representing a fourfold improvement over its predecessor system, H2.

Alongside that error-correction milestone, Helios posted an average two-qubit gate fidelity of 99.921 percent, comfortably past the widely cited three-nines threshold of 99.9 percent, and Quantinuum reported logical-qubit fidelity approaching five nines, or 99.999 percent. In quantum computing, fidelity measures how accurately an operation is carried out without introducing errors, and progress on this metric, together with more reliable logical qubits, is generally regarded as a necessary precondition for quantum computers eventually tackling problems beyond the reach of classical supercomputers.

The Oracle deal follows Quantinuum's $1.68 billion Nasdaq initial public offering in June 2026, though the newly announced partnership is a separate, distinct development centered on the Helios hardware milestone rather than on the company's public listing. No financial terms of the cloud partnership itself have been disclosed.

flagship

the most important or best product a company makes

error-corrected

designed to detect and fix mistakes automatically so results stay accurate

overhead

the extra resources needed to support a process, beyond the core result

predecessor

something that came before another thing of the same kind

precondition

something that must happen or exist before something else can happen

classical supercomputer

a powerful traditional computer that uses ordinary bits rather than qubits

hybrid

made by combining two different types of technology or systems

milestone

an important point or achievement in the progress of something

Level 4 - Advanced

Quantinuum, the quantum computing firm born of Honeywell's quantum division merging with Cambridge Quantum and freshly minted from a $1.68 billion Nasdaq listing in June 2026, disclosed on August 11 a partnership with Oracle to embed its flagship system, Helios, within a US-based Oracle Cloud Infrastructure data center. The arrangement positions Oracle to offer enterprise customers rentable, hybrid quantum-plus-AI computation over the cloud, obviating the capital expense and operational burden of owning bespoke quantum hardware.

Helios, Quantinuum's third-generation commercial machine, is a trapped-ion system that entered commercial service in November 2025 running on 98 physical qubits. Its significance lies less in raw qubit count than in demonstrated error correction: in testing, the system produced 48 logical qubits, error-corrected units assembled from multiple physical qubits so that errors afflicting any individual constituent can be detected and reversed, from those same 98 physical qubits, an overhead ratio of approximately two-to-one that Quantinuum characterizes as unprecedented among commercial quantum systems and a fourfold advance over its predecessor, H2.

The headline figures are stark: an average two-qubit gate fidelity of 99.921 percent, surpassing the industry's conventionally cited three-nines threshold of 99.9 percent, paired with a reported logical fidelity approaching five nines, or 99.999 percent. Fidelity, in this context, quantifies how faithfully a quantum operation executes without introducing error, and sustained gains along that axis, coupled with more dependably error-corrected logical qubits, are widely regarded within the field as prerequisites for quantum systems eventually addressing computational problems that lie beyond the practical reach of classical supercomputers.

Notably, no financial terms have been disclosed for the cloud arrangement itself, distinguishing this announcement sharply from the company's earlier, closely covered IPO. What the Oracle partnership signals instead is a shift in commercial posture: rather than positioning Helios purely as proprietary infrastructure, Quantinuum is wagering that distribution through an established hyperscaler's cloud will accelerate enterprise adoption of a technology whose most consequential applications remain, by the field's own admission, still on the horizon.

obviate

to remove the need for something

bespoke

custom-made for a particular user or purpose, rather than mass-produced

constituent

one of the parts that make up a whole

unprecedented

never having happened or been done before

prerequisite

something required as a prior condition for something else to happen

hyperscaler

a company that operates massive, globally distributed cloud computing infrastructure