Quantum
22:59, 04-Oct-2017
Exclusive interview: Scientist explains why China's quantum network is 'unhackable'
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China is on the fast track of building a network based on quantum technology, as scientists successfully made a video call through the network last weekend.
The network is not only built upon optical fibers, but also a satellite called "Micius" to achieve cross-continental communication.
One of the most important characters of this network is the ability to stand against tapping or hacking.
But how exactly did the scientists achieve that? What is the network built for?
We at CGTN had an interview with Wang Xilin, a professor at University of Science and Technology of China, who explained more about the technology.
"There are three things that made it very safe," Wang explained, with mentioning of basic quantum physics rules, and the encryption method of the network.
Wang also explained the data transfer speed between the Micius satellite and the ground, which seems not very fast.
"There's no physical limitation for the speed," he said. "We're planning to make it faster."
Click the cover image of this article to hear more about what he said.