The findings of this research, which have been published in the prestigious journal Proceedings of the National Academy of Sciences of the U.S.A., represent an important step forward in cybersecurity and pave the way for quantum communications to be used routinely in Malta and internationally. This new technology can keep information safe using the laws of the universe itself and is utterly unbreakable.
In their experiment, the team showed how the Melita telecommunications link between Malta and Sicily can be used to share entanglement between the two countries. This was the longest distance over which entanglement has been shared through a telecommunications network outside of a laboratory environment. It was also the first time that entanglement was distributed using an international submarine optical fibre cable. According to quantum physicist Prof. André Xuereb from the Department of Physics, who led the work in Malta, this kind of technology will soon be protecting our most important data.