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3 years ago in Information Science , Philosophy of Physics By Shreya K
What is photon entanglement, and why is it significant in physics philosophy?
In my quantum optics lab, we demonstrate entanglement regularly, treating it as a factual phenomenon. However, when I step back, the "spooky action at a distance" seems philosophically jarring. Does entanglement primarily challenge our classical notion of locality, or does it more profoundly undermine the idea of an objective reality existing independently of measurement?
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By Vishal Answered 1 year ago
Entanglement isn't just a tool; it's a beacon pointing to a profound rift between quantum and classical reality. Philosophically, its significance was crystallized by Bell's Theorem, which showed that no theory based on local realism where objects have definite properties independent of measurement and influence travels slower than light can reproduce quantum predictions. Experiments have conclusively violated Bell's inequalities. This forces us to choose: either abandon locality (allowing for some form of instantaneous connection) or abandon realism (the idea that properties exist before measurement). In my view, it doesn't just challenge our tools; it challenges the very framework by which we construct a model of the world.
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