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Earlier this week, I found a very interesting paper pop up on the arXiv headed by Joseph Eberly, a notable figure in quantum optics and entanglement.
https://arxiv.org/abs/1803.04611
In it, they look at the common treatment of wave-particle duality as a tradeoff between which-slit distinguishability, and the visibility of the resulting interference pattern. Because one can certainly have the worst of both worlds (no distinguishability or visibility), they argue that this duality is incomplete, and show how entanglement between the different degrees of freedom of a single optical field (a photon?) actually completes this relation, turning an inequality (like the uncertainty principle) into a simple equation.
I don't know exactly what this has to say about the nature of reality and such, but thought it was cool enough to share:)
https://arxiv.org/abs/1803.04611
In it, they look at the common treatment of wave-particle duality as a tradeoff between which-slit distinguishability, and the visibility of the resulting interference pattern. Because one can certainly have the worst of both worlds (no distinguishability or visibility), they argue that this duality is incomplete, and show how entanglement between the different degrees of freedom of a single optical field (a photon?) actually completes this relation, turning an inequality (like the uncertainty principle) into a simple equation.
I don't know exactly what this has to say about the nature of reality and such, but thought it was cool enough to share:)
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