Ces jours-ci la guerre commerciale retient l'attention avec raison, mais un autre dossier devrait préoccuper nos voisins. Il y a bel et bien un affrontement technologique et il semble que la Chine jouisse actuellement d'une petite longueur d'avance sur les États-Unis.
"Quantum bits, or qubits, which are often atoms, electrons or photons, can exist as zeros and ones at the same time, or in any position between, a flexibility that allows them to process information in new ways. Some physicists compare them to a spinning coin that is simultaneously in a heads and tails state.
In his talk, Pan detailed how China is harnessing qubits to safeguard its communications from hacking — one of the fields in which China appears to have a lead over the West.
Pan and his team are aiming to launch a constellation of satellites and a nationwide fiber-optic network that use qubits to securely transmit information. An almost 1,300-mile fiber link connecting Beijing, Shanghai and other cities is already up and running. So is a satellite China launched in 2016, which has conducted several prominent experiments, including facilitating a hacking-resistant video conference between Beijing and Vienna."
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