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Structure Of Matter, 2, David Peak
Structure Of Matter, 2, David Peak
Structure of Matter
Quantum electrodynamics
Quantum electrodynamics (QED) is the quantitatively best physical theory yet developed. Where it has been tested, it agrees with experiment to at least a few parts in 1011! It is a theory of how charged particles and photons interact. It starts with electrons, for example, described by the Dirac Equation, interacting with photons described by a suitable electromagnetic potential energy.