No-go theorem
Theorem of physical impossibility / From Wikipedia, the free encyclopedia
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Not to be confused with No-ghost theorem.
In theoretical physics, a no-go theorem is a theorem that states that a particular situation is not physically possible. Specifically, the term describes results in quantum mechanics like Bell's theorem and the Kochen–Specker theorem that constrain the permissible types of hidden variable theories which try to explain the apparent randomness of quantum mechanics as a deterministic model featuring hidden states.[1][2][failed verification – see discussion]
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