Wiki Feynman Diagram. Feynman diagrams are used in quantum mechanics. I the copyright holder of this work release this work into the public domain.
In physics a one loop feynman diagram is a connected feynman diagram with only one cycle unicyclic. A feynman diagram is a diagram that shows what happens when elementary particles collide. The vertices are where the lines begin and end.
A feynman diagram has lines in different shapesstraight dotted and squigglywhich meet up at points called vertices.
Large begin fmffilefeyngraph begin fmfgraph 15060. A feynman diagram is a diagram that shows what happens when elementary particles collide. The american theoretical physicist richard feynman first introduced his diagrams in the late 1940s as a bookkeeping device for simplifying lengthy calculations in one area of physicsquantum electrodynamics or qed the quantum mechanical description of electromagnetic forces. It was invented by american physicist richard feynman.