What I Learned This Week

China leapfrogs the world to create a "hack-proof" quantum communications network. Can others catch up?

In WILTW December 15, 2016, we argued that the rapidly-approaching quantum computing era would ignite massive disruption. Now, driven by domestic security concerns following Edward Snowden’s revelations of U.S. internet surveillance, China has taken a commanding lead in a critical new technology—quantum communications. China is near completion of a 2,000 kilometer (km) “unhackable” fiber communications network, linking Shanghai with Beijing. China also recently succeeded in teleporting “entangled” photons from a quantum satellite 480 km above the earth to two terrestrial stations 1,200 km apart—a distance 10 times greater than anything previously achieved. The breakthroughs are major st…

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