Before the end of 2019, scientists at the University of Bristol and the Technical University of Denmark have been able to demonstrate quantum teleportation between two computer chips for the first time.
The information was exchanged without electrical or physical contact. "We were able to demonstrate a high-quality entanglement link across two chips in the lab, where photons on either chip share a single quantum state," explains quantum physicist Dan Llewellyn from the University of Bristol in the UK. Hypothetically, quantum entanglement can work over any distance. Two particles get inextricably linked together, which means looking at one tells us something about the other, wherever it is (in this case, on a separate computer chip). "The flagship demonstration was a two-chip teleportation experiment, whereby the individual quantum state of a particle is transmitted across the two chips after a quantum measurement is performed," explained Llewellyn. The researchers were then able to run experiments in which the fidelity reached 91 percent.
For now this is very hard to control but there are all promising signs in terms of follow-up research. The team say their study could lead to a quantum internet that 'would ultimately protect the worlds information from malicious attacks'. The development of technologies which can process information based on the laws of quantum physics are predicted to have profound impacts on modern society.