IIT-Delhi researchers have achieved an experimental breakthrough on secure quantum communication up to a distance of 380 kilometres in standard telecom fiber with a very low error rate that can be helpful in securing financial transactions and secret codes.
This long secure length is the highest achieved so far, not only in India but globally, for the Differential Phase Shift (DPS) Quantum key distribution (QKD) protocol, according to officials.
The results of the research by Indian Institute of Technology (IIT)-Delhi researchers has also been published in the "Nature Scientific Reports" journal.