Teleportation and a bag of chips

An optical microscope image of the Silicon chip used in the experiment.
Image credit: Llewellyn et al, doi: 10.1038/s41567-019-0727-x

In a recent collaboration spanning Bristol, Denmark, Austria, and China, we demonstrated the teleportation of quantum states of light across two millimetre-scale Silicon chips and the on-chip entanglement of four photons in a GHZ-entangled state. Together with the Huber group at IQOQI Vienna, our team developed efficient theoretical techniques for measuring the generated multi-photon entangled states. These results open the door towards CMOS-compatible quantum technology applications in networking and computation.

Publication: D. Llewellyn et al, “Chip-to-chip quantum teleportation and multi-photon entanglement in silicon,” Nature Physics 16, 148–153 (2020).

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