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Quantum computers could make scientific calculations real, which required conventional machines would be millions of years. At the same time, the fundamental unit of quantum computers – the so-called “qubit” – although fast, is very demanding.
Qubits are easy to break, making them error-prone: about 1 in 1,000 qubits fail, versus 1 in 1 billion bits in conventional computers. To solve this problem, quantum researchers often create more physical qubits than needed and use error correction techniques.
Microsoft and Quantinuum claimed to have made a breakthrough in this area. According to Reuters, Microsoft created and applied its own error correction algorithm to Quantinuum physical qubits, forming 4 reliable qubits out of a total of 30 physical qubits. Microsoft executive vice president of strategic missions and technology Jason Zander said that this is the best ratio of reliable qubits from a quantum chip that has ever been demonstrated:
“We ran over 14,000 separate experiments without a single error. This is 800 times better than anything previously recorded.”
Microsoft said it plans to release this technology to its cloud computing customers in the coming months.
Quantinuum researchers, like the rest of its competitors, often cite the figure of 100 reliable qubits as necessary to “beat” a conventional supercomputer. But neither Microsoft nor Quantinuum specified how long it would take to achieve this goal.
“We are now at least two years faster, if not more,” said Quantinuum Product Director Ilyas Khan.
Meanwhile, competitor QuEra announced that it will launch the world’s first fault-tolerant quantum computer for sale in 2024, and two years later – a 10,000-qubit computer.
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