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| China is developing drones with the help of quantum physics |
Chinese scientists have developed the world's first drone fleet equipped with quantum communications technology to exchange information securely with each other and with human operators.
According to a research article they published in the journal earlier this month, researchers from Nanjing University in eastern China built drones capable of generating pairs of "stray" light particles. The term OR indicates a polarization equal to 0 or 1. A national scientific view.
According to the laws of quantum physics, the annoyance of a pair of nested particles affects another particle regardless of distance, which means that these particles contain their contents without changing the message and without notifying the recipient or sender. Information cannot be intercepted.
China is developing drones with the help of quantum physics
Quantum communication devices (or quantum nodes) are usually created in laboratories with large and complex devices, including laser pumps, sunlight crystals, mirrors, and highly sensitive detectors. However, Professor Ju Xining and his colleagues from the National Solid State Structure Laboratory reduced quantum nodes and packaged them in 35 kg of drones. "A third of the weight comes from batteries," said the co-author of the study, Professor Shi Jinda. "We have built and used dozens of aircraft."
The researchers wrote in a research document that these drones will be upgraded in the future to communicate with quantum satellites or quantum terrestrial communication networks and provide "the ultimate solution to ensure the security of data transmission." They said, every drone can produce 2.4 million pairs of entangled light particles per second.
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| China is developing drones with the help of quantum physics |
It is worth noting that the current military aircraft communications are protected by arithmetic encryption. At the end of last year, Google announced a typical how much computer can do computer tasks in 200 seconds, compared to a traditional supercomputer that could take more than 10,000 years.
China is developing drones with the help of quantum physics
It is also worth noting that quantitative communication presents many challenges. For example, the device that emits particles that use a crystal to divide the laser beam into two beams must line up with the receiver. Compared to satellites and earth stations, drones are not a fixed platform and are not subject to unexpected conditions. Researchers have found that storms can cause Nanjing team's jets in the air.
Another challenge during the experiment was the eight pairs of wings on the drone, and the vibrations they generate could affect the accuracy of the quantum device. The researchers used specially developed rubber pipettes to eliminate vibrations.
It is worth noting that China has become the leading global provider of quantum communication technologies. It placed the world's only satellite in its orbit. The quantum communication network between Beijing and Shanghai is the longest and most developed in the world. Chinese researchers recently succeeded in reducing the size of a satellite earth station from the size of a building to an 80 kilogram unit suitable for a family car.