IEEE Spectrum<p>Quantum data transmission over 250 kilometers has been achieved using existing commercial <a class="hashtag" href="https://bsky.app/search?q=%23fiberOptics" rel="nofollow noopener" target="_blank">#fiberOptics</a>. “This work opens the door to practical quantum networks without needing exotic hardware.” <a class="hashtag" href="https://bsky.app/search?q=%23QuantumNetworks" rel="nofollow noopener" target="_blank">#QuantumNetworks</a>
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