Then, in 2017, the Micius team used entangled photos to encrypt transmissions enabling a virtual meeting between the Austrian and Chinese science academies in Vienna and Beijing respectively – 7,400km apart. A successful long-distance quantum communications link ushers in a new era of communication security. However, the news of a successful long-distance quantum communications link is a sign that we are already living in a new era of communication security. The launch of Micius and the records set by the scientists and engineers building quantum communication systems with its help have been compared to the effect Sputnik had on the space race in the 20th century. Dr. Earl estimated that matching China’s quantum accomplishments in orbit will take the unclassified parts of the United States program another three years “and maybe longer, which is pretty concerning. Scientists showed the photons reach Earth as entangled as they were in orbit. A new paper from Pan Jia-Wei’s lab published in Nature shows that Micius has again successfully brought entanglement-based quantum cryptography to its original ground stations 1,200 km apart. The method enlists quantum entanglement, an idea of modern physics that seems ridiculously at odds with common sense. Albert Einstein called quantum entanglement “spooky action at a distance.”, The Chinese authors, who in 2017 first reported on entanglement success in a satellite transmission, now show that they have increased its efficiency and reduced error rates enough to use quantum entanglement for the relay of cryptographic keys. A n image touted to be captured from a Chinese satellite with 24.9 billion pixels of quantum technology is making rounds on several social media platforms and news websites. The world of artificial satellites, silent in the void of space, might seem pacific. The satellite serves as the source of pairs of entangled photons, twinned light particles whose properties remain intertwined no matter how far apart they are. If you use one of the entangled particles to create a key for encoding messages, only the person with the other particle can decode them. A 2012 profile of Dr. Pan in Nature reported that he was in his early 30s when, in 2001, he set up China’s first laboratory for manipulating the quantum properties of photons. The program was initiated in 2018. Launched in 2016, Micius has already produced a number of breakthroughs under its operating team led by Pan Jian-Wei, China’s “Father of Quantum”. Until now, this had never been done via satellite or at such great distances. This article is republished from The Conversation under a Creative Commons license. Harun Šiljak, Postdoctoral Research Fellow in Complex Systems Science for Telecommunications, Trinity College Dublin. Scientists have now reported using this technology to reach a major milestone: long-range secure communication you could trust even without trusting the satellite it runs through. Comments are moderated and will be published only after the site moderator’s approval. The launch of Micius and the records set by the scientists and engineers building quantum communication systems with its help have been compared to the effect Sputnik had on the space race in the 20th century. This also involved designing the machinery for distributing the keys and a mechanism for preventing malicious attacks, such as blinding the telescopes with other light signals. In the middle of the night, invisible to anyone but special telescopes in two Chinese observatories, satellite Micius sends particles of light to Earth to establish the world’s most secure communication link.

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