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Relativistic quantum field theory of electrodynamics
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- In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved.
en.wikipedia.org/wiki/Quantum_electrodynamics
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In particle physics, quantum electrodynamics (QED) is the relativistic quantum field theory of electrodynamics. [1][2][3] In essence, it describes how light and matter interact and is the first theory where full agreement between quantum mechanics and special relativity is achieved. [2]
Quantum electrodynamics (QED), quantum field theory of the interactions of charged particles with the electromagnetic field. It describes mathematically not only all interactions of light with matter but also those of charged particles with one another. QED is a relativistic theory in that Albert.
- The Editors of Encyclopaedia Britannica
In this section we finally get to quantum electrodynamics (QED), the theory of light interacting with charged matter. Our path to quantization will be as before: we start with the free theory of the electromagnetic field and see how the quantum theory gives rise to a photon with two polarization states.
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Quantum electrodynamics, commonly referred to as QED, is a quantum field theory of the electromagnetic force. Taking the example of the force between two electrons, the classical theory of electromagnetism would describe it as arising from the electric field produced by each electron at the position of the other.
May 27, 2024 · Quantum Electrodynamics (QED) represents a cornerstone of modern physics, merging quantum mechanics with the electromagnetic field theory. This powerful framework explains how light and matter interact at the quantum level, fundamentally shaping our understanding of the physical world.
May 27, 2024 · Quantum Electrodynamics (QED) represents a cornerstone of modern physics, intertwining the principles of quantum mechanics with classical electromagnetism. It’s a quantum field theory that describes how light and matter interact, providing a framework for understanding the electromagnetic force—one of the four fundamental forces in the ...
Quantum electrodynamics is the modern theory of electricity, magnetism, and light. The use of Feynman diagrams to describe particle interactions started here.
