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Posting time:2024-05-22 01:57:23
Photo taken on Sept. 6, 2017 shows red fluorescence from the rare earth ions in an yttrium orthosilicate crystal interacting with a (yellow) laser beam in the Australian National University (ANU), Canberra. Australian scientists have made a significant breakthrough in developing an "unhackable" quantum internet, it was announced on Sept. 12. (Xinhua/ANU/Stuart Hay)
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