Feynman diagram

In this diagram, a kaon, made of an up and anti-strange quark, decays both weakly and strongly into three pions, with intermediate steps involving a W boson and a gluon (represented by the blue sine wave and green spiral, respectively).

General features of the scattering process A + B → C + D:
• internal lines (red) for intermediate particles and processes, which has a propagator factor (

Feynman diagram of electron/positron annihilation

In theoretical physics, Feynman diagrams are pictorial representations of the mathematical expressions describing the behavior of subatomic particles. The scheme is named for its inventor, American physicist Richard Feynman, and was first introduced in 1948. The interaction of sub-atomic particles can be complex and difficult to understand intuitively. Feynman diagrams give a simple visualization of what would otherwise be a rather arcane and abstract formula. As David Kaiser writes, "since the middle of the 20th century, theoretical physicists have increasingly turned to this tool to help them undertake critical calculations", and as such "Feynman diagrams have revolutionized nearly every aspect of theoretical physics". While the diagrams are applied primarily to quantum field theory, they can also be used in other fields, such as solid-state theory.

单词	Feynman Diagrams
释义	Feynman Diagrams 原声例句 202325 At a time when QED was known for its complex mathematics and seemingly endless calculations, Feynman introduced a novel visual tool to simplify these processes - the Feynman diagrams. 当 QED 以其复杂的数学和看似无穷无尽的计算而闻名时，费曼引入了一种新颖的视觉工具来简化这些过程 - 费曼图。教师节专栏 He spent most of his time at Caltech the idea of quantum physics, where all these particles are interacting in mysterious ways, he came up with a thing called Feynman diagrams that he won the Nobel Prize for. 他投入很多时间在加州理工量子物理的研究中，分子之间神秘的互相作用着，他想到用一个叫做费曼图，使他赢得了诺贝尔奖。英语百科 Feynman diagram In theoretical physics, Feynman diagrams are pictorial representations of the mathematical expressions describing the behavior of subatomic particles. The scheme is named for its inventor, American physicist Richard Feynman, and was first introduced in 1948. The interaction of sub-atomic particles can be complex and difficult to understand intuitively. Feynman diagrams give a simple visualization of what would otherwise be a rather arcane and abstract formula. As David Kaiser writes, "since the middle of the 20th century, theoretical physicists have increasingly turned to this tool to help them undertake critical calculations", and as such "Feynman diagrams have revolutionized nearly every aspect of theoretical physics". While the diagrams are applied primarily to quantum field theory, they can also be used in other fields, such as solid-state theory.
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Feynman Diagrams

Feynman diagram