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How the Basis of All Matter Comes from the Dirac Equation - Understanding Quantum Electrodynamics

How the Basis of All Matter Comes from the Dirac Equation - Understanding Quantum Electrodynamics

Arvin Ash via YouTube Direct link

4:39 Gauge principle: demanding U1 symmetry

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4:39 Gauge principle: demanding U1 symmetry

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How the Basis of All Matter Comes from the Dirac Equation - Understanding Quantum Electrodynamics

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  1. 1 0:00 Model the universe starting with nothing
  2. 2 0:54 What's a quantum field?
  3. 3 2:12 The Dirac Lagrangian
  4. 4 4:39 Gauge principle: demanding U1 symmetry
  5. 5 6:49 Demanding local symmetry
  6. 6 8:10 Photon field allows equation to obey local symmetry
  7. 7 10:17 Quantum Electrodynamics QED results

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