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flag UNSW researchers enabled distant atomic nuclei in silicon to communicate via electrons, a key step toward scalable quantum computers.

flag Researchers at the University of New South Wales have advanced quantum computing by enabling atomic nuclei in silicon chips to communicate over distances using electrons, a breakthrough that could enable scalable, practical quantum computers. flag The team achieved entanglement between phosphorus atom nuclei separated by about 20 nanometers—roughly one-thousandth the width of a human hair—by using electrons that spread out in space to mediate interactions without disrupting the nuclei’s stability. flag This method preserves long-lasting quantum information storage while allowing controlled communication across distances, overcoming previous limitations that required nuclei to be extremely close. flag The approach is compatible with existing silicon chip manufacturing, leveraging well-established semiconductor technology. flag Published in Science on September 18, 2025, the work builds on years of research at UNSW and represents a major step toward large-scale, low-error quantum processors.

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