https://en.m.wikipedia.org/wiki/Field_%28physics%29
Quantum fields
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Main article: Quantum field theory
It is now believed that quantum mechanics should underlie all physical phenomena, so that a classical field theory should, at least in principle, permit a recasting in quantum mechanical terms; success yields the corresponding quantum field theory. For example, quantizing classical electrodynamics gives quantum electrodynamics. Quantum electrodynamics is arguably the most successful scientific theory; experimental data confirm its predictions to a higher precision (to more significant digits) than any other theory.[22] The two other fundamental quantum field theories are quantum chromodynamics and the electroweak theory.
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