In theoretical physics, a Feynman diagram is a pictorial representation of the mathematical expressions describing the behavior and interaction of subatomic...
93 KB (16,017 words) - 21:20, 21 September 2024
of subatomic particles, which later became known as Feynman diagrams. During his lifetime, Feynman became one of the best-known scientists in the world...
126 KB (14,489 words) - 11:48, 24 September 2024
one-loop Feynman diagram is a connected Feynman diagram with only one cycle (unicyclic). Such a diagram can be obtained from a connected tree diagram by taking...
2 KB (227 words) - 03:27, 12 August 2024
This is a list of common Feynman diagrams....
3 KB (8 words) - 18:08, 16 December 2023
Quantum field theory (section Feynman diagram)
quantum fields. Each interaction can be visually represented by a Feynman diagram according to perturbation theory in quantum mechanics. Quantum field...
106 KB (14,889 words) - 23:05, 25 September 2024
Quantum electrodynamics (section Feynman diagrams)
observables at any order of perturbation theory. Feynman's mathematical technique, based on his diagrams, initially seemed very different from the field-theoretic...
50 KB (6,629 words) - 15:36, 28 September 2024
Virtual particle (section Feynman diagrams)
particles can be described by a schematic representation known as a Feynman diagram, in which virtual particles are represented by internal lines. Virtual...
22 KB (2,910 words) - 11:52, 25 August 2024
Propagator (redirect from Feynman propagator)
period of time, or to travel with a certain energy and momentum. In Feynman diagrams, which serve to calculate the rate of collisions in quantum field theory...
35 KB (6,207 words) - 07:25, 11 August 2024
Path integral formulation (redirect from Feynman's path integral)
possible histories of the system from the initial to the final state. A Feynman diagram is a graphical representation of a perturbative contribution to the...
86 KB (14,267 words) - 21:56, 22 September 2024
Antiparticle (redirect from Stückelberg-Feynman interpretation)
now called Feynman diagrams. Each line of a diagram represents a particle propagating either backward or forward in time. In Feynman diagrams, anti-particles...
24 KB (2,653 words) - 18:34, 19 September 2024