This is mostly for
@Wu Wei but others will see what this resembles in a flash
Quantum entanglement visualized for the first time ever
A new development will help cement the “realness” of quantum entanglement even more. A team of researchers from the University of Ottawa and the Sapienza University of Rome have demonstrated a novel technique that allows the visualization of an entangled pair of photons — particles of light. More accurately, what the scientists have manifested and what they describe in a paper published in
Nature Photonics is the wavefunction of this quantum system
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Holographic techniques like this rely on the fact that light can be modeled as a wave, and when two waves overlap and are “in phase”, where a peak means a peak or a trough meets a trough, this feature of the wave is amplified — a phenomenon called constructive interference.
But, when the light waves are out of phase, a peak meets a trough, and the features cancel each other out — this is called, predictably maybe, destructive interference.
The inference pattern that results from the overlapping of two light waves — one known (a reference wave) and the other unknown — can give information about the unknown wave, allowing it to be reconstructed. This means that holographic techniques can reconstruct a 3D object from 2D images. The team extended the technique of digital holography to solve the problem of reconstructing the state of two entangled photons.