Researchers in Germany have achieved a significant milestone in quantum communications by successfully demonstrating coherent quantum communications over 254 km of existing commercial telecom fiber, marking the first real-world deployment of such a system without cryogenic cooling. Utilizing coherence-based twin-field quantum key distribution, this system allows for secure information distribution across long distances and connects three data centers in Frankfurt, Kehl, and Kirchfeld. This advancement indicates that advanced quantum communication protocols can effectively operate over existing telecom infrastructure, as published in the journal Nature.
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The ‘small’ OnePlus 13T packs a big battery
OnePlus has launched the 13T, featuring a compact design with a 6.32-inch OLED screen and an impressive 6,260mAh battery, surpassing the capacities of flagship competitors like the iPhone 16 and Galaxy S25. The phone replaces the traditional alert slider with a customizable shortcut button and is powered by a Snapdragon 8 Elite chipset with up to 16GB RAM and 1TB storage, alongside a dual 50-megapixel camera setup. Priced at CNY3,399 (approximately $466) in China, it...
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