By introducing the technology of Quantum security field into drones and satellites, it is possible to realize a large-capacity and secure network that covers the earth. Now, available radio frequencies in mobile communications networks are being tightly regulated, but laser light is not yet subject to the regulation. In addition, the laser beam used in quantum communication has advantages over radio waves, such as increased power efficiency and reduced interference, because it is broadband and highly directional. In space, it is expected that communications of quantum cryptography on a global scale will become possible because of almost no attenuation of light as opposed to optical fiber lines on the ground.
A quantum network realized by integrating long-distance quantum communications with quantum technologies is envisioned. It is expected that various technologies such as the following will be realized by communicating quantum information over the network.
Long distance quantum cryptography by relaying quantum information without destroying the information
Quantum network of optical clocks for recording accurate time by connecting separate optical clocks to each other
Distributed quantum computer having high computing power by interconnection of small and medium scale quantum computers
Secret quantum computation that can be performed by a distributed quantum computer without third party knowing its contents
Ultimately, we aim to build Quantum technology platform by (1) pioneering a quantum security fusion area where security technology of quantum cryptography and network technology are fused, (2) broadening quantum communications by collaborating with the satellite communications field, (3) fusing quantum computing and quantum measurement and sensing , and (4) integrating with current networks such as the Internet.
