Record broken encryption distance by Quantum Satellite

Record broken encryption distance by Quantum Satellite

An important part of encryption technology is the privacy of individuals and online financial security. Quantum computing, the next leap forward for the field, requires its own version of this technology and in one step researchers have now set a new distance record for secure quantum communication. As reported by Nature, the researchers were able to share a secret key used for encryption and decryption between the two obtained stations, located 1,120 kilometers (696 miles) away. The previous record was 404 kilometers (251 miles) and the key was transmitted via fiber optics. For the new record, researchers have hired a satellite instead.

The Michias satellite is a state-of-the-art quantum receiver and transmitter that has already become exceptional in performing quantum communications. Adding encryption is an important step in the future progress of Quantum.

Researchers report that this was achieved by more realistic devices than experimental ones. From their satellites were two telescopes built by Delinga in China’s Qinbei Province and Nanshan in Xinjiang Province, which received secure keys in the form of an associated pair of photons from the satellite.

The Michias satellite is a state-of-the-art quantum receiver and transmitter that has already become exceptional in performing quantum communications. Adding encryption is an important step in the future development of the Quantum Internet.

Entanglement is a strange phenomenon that occurs in quantum mechanics. If two particles are intertwined, their properties are in a single quantum state, so that once their properties are measured, they remain interrelated, no matter how far apart they are. The authors noted that their method allowed the creation of a secure channel for transmitting quantum information.

Quantum computers promise to revolutionize many scientific fields, from physics to medicine, for incredible computational power. Systems made up of dozens of particles can surpass today’s supercomputers. These machines allow us to simulate reality as before and that is why there is so much interest in them from all scientific fields.

At the same time, the quantum particles in these computers are incredibly fine. The mesh can be easily disrupted and has to be kept at a low temperature effectively to protect it from quantum computers. A quantum computer is not yet a reality but it has come much closer to us along with many more technological steps.

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