Experiments recognized by the 2022 Nobel Prize in Physics demonstrated violations of Bell inequalities, ruling out broad classes of local hidden variable explanations for quantum mechanics.
The results challenge local realism, the intuitive idea that physical properties have definite values independent of measurement while influences remain local. Quantum entanglement instead reveals correlations between particles that cannot be explained through classical local models.
This discovery forces us to reconsider some of our deepest assumptions about matter, observation, and the structure of reality. At the quantum level, the universe behaves according to principles that resist the familiar categories through which we experience the everyday world.
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