Back to the future: Record transmission of the Chinese team places in the ground for quantum internet

Chinese scientists have set up a transmission data set in Quantum Secure Direct Communication, which brings the technology into the Internet dial-up speed of the nineties and places the prerequisites for a future quantum internet.

The new quasi-quantum secure direct communication (QSDC) protocol of the team set both a transmission and a distance rate with a transmission rate of 2.38 kilobits per second (KBPS) over 104.8 km (65 miles) standard telecommunications liver .

This speed enables the secure transmission of text, language and image files in quantum states, so that it may be useful to send small amounts of sensitive information- e.g. B. Financial data or information that is of crucial importance for national security.

“This system paved the way for the practical application of QSDC and offers a unique method to recognize online listening what is of crucial importance under certain circumstances,” wrote the team in a paper that on February 21 in the Journal science reviewed by experts.

Inventor of the QSDC Technology Long Guilu, physics professor at Tsinghua University and Vice President of the Beijing Academy of Quantum Information Sciences, said that the protocol could also be used to build a quantum internet.

In contrast to the classic internet, in which information is transmitted as bits, a quantum internet wants to improve internet functions and security by using quantum bits or qubits as well as quantum phenomena in order to achieve an ultra-safe connection.

“Prototype Quantum Internet Based on this protocol, our laboratory has already been installed,” said Long.