In recent years, the use of optical quantum physics in the field of communication has taken an early step. Last August, the media reported the world’s first working quantum radar prototype. It is characterized by the use of a pair of low-energy entanglement photons as a means of measuring the information of the walking environment. Earlier, there were new reports that the world’s first mobile quantum satellite station had been developed. The portable satellite station utilizes the intrinsic properties of photons to establish a secure channel for transmitting and receiving quantum communications.
(From: Shandong Satellite TV, via Neowin)
Reported that the 80-kilogram mobile quantum communication station, has been launched in 2016 with the world’s first quantum science experimental satellite “Mozi” successfully connected.
Subsequently, the research team of Hefei University of Science and Technology, led by Ren Jigang, carried out quantum key distribution through this portable workstation.
During this period, photons are exchanged as “keys” to encrypt or decrypt information. To demonstrate, the team completed a relay of a quantum key using the Moiko quantum satellite, a mobile satellite station in Jinan and a fixed station in Shanghai.
Although portable quantum satellite stations can only transmit data at 4000 to 10,000 bits (bps), and large stations can deliver 40,000 bps, the most impressive is that the entire portable base station weighs only about 80 kg (about 176 lbs).
Ren said the project is supported by a number of companies and organizations, including Industrial and Commercial Bank of China, and wants to build a program based on facilities that do not require a large, purpose-built facility.
The team plans to continue launching quantum nanosatellites in the next few years, and looking ahead, more and more people will use quantum keys to protect their important information.