The first in Russia and the CIS a multi-node quantum network successfully started to work in Kazan. This was told by the press service of the ITMO University. The project was implemented by a team of scientists from the Kazan quantum center of KAZAN state technical University and the ITMO University.
It is reported that multi-node quantum network is running in full mode. Quantum channels are combined four points located in different areas of capital of Tatarstan.
During startup between the network nodes was used for the transmission of control commands and file transfer, as well as was tested the audio via quantum coding, in fact, in the “quantum” phone. During the tests, the rate of generation of sifted quantum sequences on separate portions of the network exceeds 100 kbps.
The pilot segment of the Kazan quantum network connecting two of the four nodes, was tested in August 2016. Now we have a fully functioning communication between all four points and developed a new data transfer Protocol, optimized for urban infrastructure.
The network is implemented on existing fiber optic lines of the operator “Tattelecom”. Two nodes are in the main switching stations “Tattelecom” on opposite banks of the Kazanka river, the buildings of KAZAN state technical University. Points are at a distance of about 10 km from each other, the length of the optical cable between the individual nodes in the course of technical tests amounted to 30-40 km.
As scholars have noted, the project is completely based on Russian designs on a number of parameters surpass foreign analogues.
Such a network has high security when transferring data. As carriers of information are single photons that are irreversibly modified when trying to intercept data. As a result, any incursion into the channel, it becomes immediately known. As expected, the quantum network can be used by financial institutions, government agencies, industries, everywhere where confidentiality is important in the exchange of information.