TUT5: Quantum Communication for 6G NTN

In the era of advancing ICT, with a large volume of data flowing on the Internet, data security is paramount. Many nations have started exploring the limits of Quantum Physics to provide them with the most robust and secure communication technology. One such emerging field is Quantum Internet. The Quantum internet ensures ultimate security for the information exchange and is protected by the laws of Physics. Unlike the classical Internet, where data is transmitted in binary bits, the Quantum internet transmits data encoded in Quantum bits called Qubit. Just like how binary digital bits can be manipulated using Binary Logic Gates, Qubits can be manipulated using Quantum Gates. This tutorial will introduce Qubits, some basic Quantum gates, and explain how to build simple Quantum circuits using these Quantum Gates. One such Quantum Circuit is the circuit of Quantum Teleportation where a random Qubit is teleported from Transmitter to Receiver. This circuit is the building block of Quantum Communication. This tutorial will explain the teleportation circuit in detail and how it is the building block of Future Quantum Communication Networks.

Keywords: Qubits, Quantum Gates, Quantum Circuts, Quantum Teleportation, Quantum Internet