... of Feynman diagrams (ultraviolet divergences (UV divergences)) to the concept of renormalization and renormalization groups (RG). The constructions of quantum (or statistical) field theories (QFTs) and the deeply related RG have been some of the major theoretical achievements in physics of the last century...

..., quarks The fundamental forces holding these various objects together as well as antimatter, neutrinos, and Feynman diagrams make their first appearance here. celestial vault electromagnetic radiation galaxies microwaves photons wavelength Cosmic Background Radiation CBR sound Andromeda galaxy...

... sections and partial decay widths. It introduces relativistic phase space. It introduces Feynman diagrams and describes their role in visualizing elementary particle reactions. cross section differential cross section lifetime of a particle partial width resonance total width width σ branching...

... electrons radio waves Hertz Heinrich Feynman diagrams particle interactions photons quantum theory quantum waves Bohr Niels Feynman Richard Einstein’s general relativity general relativity gravitational waves gravitons Einstein electromagnetic waves Faraday Feynman diagram general...

... to Feynman diagrams, particle interactions and QED. The path from the strong force to quarks, gluons and QCD is presented. The weak force is discussed, along with the subsequent discoveries of the neutrino and parity violation. The unified electroweak theory is described, including the Higgs mechanism...

... tessalated surfaces universal properties Feynman diagram topological continuum limit specific heat exponent steepest descent method string susceptibility central charge conformal matter critical quantum gravity flow equations matrix renormalization stability analysis random matrix conformal...

... of perturbation theory in terms of Feynman diagrams. The general prescriptions of constructing Feynman diagrams in momentum space are given, including for an S-matrix. The connected Green functions and the corresponding generation functional are defined with full proofs. After introducing...

... of the history of QED starting with the Shelter Island conference. With the fine structure constant emerging as the parameter that makes quantum electrodynamics work, readers get a taste of the beauty and the virtuosity of Feynman diagrams. The chapter also discusses Andy Charalambous’s artwork which...