Quantum Journal: Pixel Entanglement

Twas the night before Christmas, when all through the lab,
Not a creature was stirring, not even a browser tab,
The laser was focused on the crystal with care,
In the hope that pixel entanglement soon would be there!

In our recent paper published in the journal Quantum, we demonstrate high-dimensional entanglement of “pixels” of light with a record dimensionality, quality, and measurement speed! We achieved entangled state fidelities of up to 94.4% in a 19-dimensional state-space, entanglement in up to 55 local dimensions, and an entanglement-of-formation of up to 4 ebits. We were also able to improve upon the time taken by previous techniques for measuring entanglement by more than two orders of magnitude! This work was done in collaboration with our friends in Vienna and the Czech Republic.

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