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Quantinuum has announced that its H-Series processor has surpassed the ability to be simulated by the worlds best supercomputers, enabling the company to extend the lead in the race towards fault tolerant quantum computing.

The UK quantum computing company has announced a major qubit (or quantum bit) count enhancement to its flagship System Model H2 quantum computer from 32 to 56 trapped-ion qubits.

Formed in 2021 by Honeywell and Cambridge Quantum, Quantinuum has to date raised approximately $625m to further the development and commercialisation of quantum computing. Its mission is to see the quantum computing industry depart the era when quantum computers could be simulated by a classical computer.

This has been achieved, with the announcement that its upgraded H2-1 from 32 to 56 qubits makes its processor impossible to classically simulate.

This upgrade is also challenging the worlds most powerful supercomputers. It proved this in a demonstration in partnership with US finance company JPMorgan Chase and a team from research institutions Caltech and Argonne National Lab.

This demonstration tackled a well-known algorithm of quantum computing power, random circuit sampling, and measured the quality of results with a suite of tests including the linear cross entropy benchmark an approach first made famous by Google in 2019 in a bid to demonstrate quantum supremacy.

The results on H2-1 reveal a significant 100x lift in performance over prior industry results from Google, setting a new world record for the cross entropy benchmark.

According to Quantinuum, H2-1s combination of scale and hardware fidelity makes it difficult for todays most powerful supercomputers and other quantum computing architectures to match this result.

Were extending our lead in the race towards fault tolerant quantum computing, accelerating research for customers like JPMorgan Chase in ways that arent possible with any other technology, said Rajeeb Hazra, CEO of Quantinuum.

Our focus on quality of qubits versus quantity of qubits is changing whats possible, and bringing us closer to the long-awaited commercialisation of quantums applications across industries like finance, logistics, transportation and chemistry.

Quantinuums analysis also indicates that not only does HS2-1 achieve significant system-level performance, it does so with an estimated 30,000x reduction in power consumption compared to classical supercomputers.

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UK quantum company reaches new milestones on the path to powerful quantum computers - E&T Magazine