Abstract: Abstract An elegant alternative formalism of quantum mechanics was given by R. P. Feynman in 1948. The importance of this formalism, known as the path integral, functional integral, etc. approach, first of all lies in its vivid, intuitive description of quantum fluctuations. At the same time, it provides us with a formidable tool of calculus, of both perturbative effects (Feynman diagrams) and non-perturbative effects (e.g., tunnel effects, instantons).
Publication Year: 2009
Publication Date: 2009-03-05
Language: en
Type: book-chapter
Indexed In: ['crossref']
Access and Citation
AI Researcher Chatbot
Get quick answers to your questions about the article from our AI researcher chatbot