First chip-to-chip quantum teleportation harnessing silicon photonic chip fabrication

Scientists from the University of Bristol and 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. In one of the breakthrough experiments, they demonstrate the quantum teleportation of information between two programmable chips for the first time.

The team was able to demonstrate some other important functionality of their designs, such as entanglement swapping (required for quantum repeaters and quantum networks) and four-photon GHZ states. (Phys.org)

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