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Scientists Make 'Magic State' Breakthrough After 20 Years

1 month 4 weeks ago
An anonymous reader quotes a report from Live Science: In a world first, scientists have demonstrated an enigmatic phenomenon in quantum computing that could pave the way for fault-tolerant machines that are far more powerful than any supercomputer. The process, called "magic state distillation," was first proposed 20 years ago, but its use in logical qubits has eluded scientists ever since. It has long been considered crucial for producing the high-quality resources, known as "magic states," needed to fulfill the full potential of quantum computers. [...] Now, however, scientists with QuEra say they have demonstrated magic state distillation in practice for the first time on logical qubits. They outlined their findings in a new study published July 14 in the journal Nature. In the study, using the Gemini neutral-atom quantum computer, the scientists distilled five imperfect magic states into a single, cleaner magic state. They performed this separately on a Distance-3 and a Distance-5 logical qubit, demonstrating that it scales with the quality of the logical qubit. "A greater distance means better logical qubits. A Distance-2, for instance, means that you can detect an error but not correct it. Distance-3 means that you can detect and correct a single error. Distance-5 would mean that you can detect and correct up to two errors, and so on, and so on," [explained Yuval Boger, chief commercial officer at QuEra who was not personally involved in the research]. "So the greater the distance, the higher fidelity of the qubit is -- and we liken it to distilling crude oil into a jet fuel." As a result of the distillation process, the fidelity of the final magic state exceeded that of any input. This proved that fault-tolerant magic state distillation worked in practice, the scientists said. This means that a quantum computer that uses both logical qubits and high-quality magic states to run non-Clifford gates is now possible. "We're seeing sort of a shift from a few years ago," Boger said. "The challenge was: can quantum computers be built at all? Then it was: can errors be detected and corrected? Us and Google and others have shown that, yes, that can be done. Now it's about: can we make these computers truly useful? And to make one computer truly useful, other than making them larger, you want them to be able to run programs that cannot be simulated on classical computers."

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Intel Kills Clear Linux OS As Support Ends Without Warning

1 month 4 weeks ago
BrianFagioli shares a report from NERDS.xyz: Intel has quietly pulled the plug on Clear Linux OS, officially ending support for the once-promising Linux distribution that it had backed for nearly a decade. Effective immediately, the company says it will no longer provide any updates, security patches, or maintenance for the operating system. In a final blow, the Clear Linux OS GitHub repository is now archived in read-only mode. The move was announced with little fanfare, and for users still relying on Clear Linux OS, there's no sugarcoating it... you need to move on. Intel is urging everyone to migrate to an actively maintained Linux distribution as soon as possible to avoid running unpatched software. "Rest assured that Intel remains deeply invested in the Linux ecosystem, actively supporting and contributing to various open-source projects and Linux distributions to enable and optimize for Intel hardware," the company said in a statement. "A heartfelt thank you to every developer, user, and contributor who helped shape Clear Linux OS over the last 10 years. Your feedback and contributions have been invaluable."

Read more of this story at Slashdot.

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