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NTT, in conjunctions with its partners from the National Institute of Informatics and Osaka University, observes a hidden long-lived quantum state in a hybrid system composed of a superconducting flux qubit and an electron spin ensemble in diamond.

Since this technology provides a new approach to realize long-lived quantum memories, our results have a potential to reduce the resources and development costs to construct a scalable quantum computation, and therefore our results could make a breakthrough to realize ultra-fast quantum information processing in the future. Our results will be published in Nature Communications on April 8.

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