Quantum Communications: ISRO Makes Progress, But China Is Ahead

The Indian Space Research Organisation (ISRO) in a breakthrough technological development has tested a free space quantum communication over a distance of 300 metres. Quantum communication is based on the principles of quantum mechanics. Quantum Key Distribution (QKD) is the most promising field in terms of practical application of quantum science. QKD has become absolutely essential because of some very important reasons. Global electronic commerce has expanded significantly over the last several decades requiring extensive protection.