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The development of technologies which can process information based on the laws of quantum physics are predicted to have profound impacts on modern society.

For example, quantum computers may hold the key to solving problems that are too complex for today’s most powerful supercomputers, and a quantum internet could ultimately protect the worlds information from malicious attacks.

However, these technologies all rely on “quantum information,” which is typically encoded in single quantum particles that are extremely difficult to control and measure.

Scientists from the University of Bristol, in collaboration with the Technical University of Denmark (DTU), have successfully developed chip-scale devices that are able to harness the applications of quantum physics by generating and manipulating single particles of light within programmable nanoscale circuits.

These chips are able to encode quantum information in light generated inside the circuits and can process the “quantum information” with high efficiency and extremely low noise. This demonstration could enable a significant boost in the ability to produce more complex quantum circuits that are required in quantum computing and communications.

Their work, published in the journal Nature Physicsand available for free in preprint form on the arXiv preprint server, hosts a range of quantum demonstrations.

In one of the breakthrough experiments, researchers at the University of Bristol’s Quantum Engineering Technology Labs (QET Labs) demonstrate the quantum teleportation of information between two programmable chip for the first time, which they remark is a cornerstone of quantum communications and quantum computing.


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