On the concept of virtual states

Ramakrishnan, Alladi ; Radha, T. K. ; Thunga, R. (1962) On the concept of virtual states Journal of Mathematical Analysis and Applications, 5 (2). pp. 225-236. ISSN 0022-247X

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Official URL: http://linkinghub.elsevier.com/retrieve/pii/S00222...

Related URL: http://dx.doi.org/10.1016/S0022-247X(62)80006-7


The technique of the decomposed Feynman propagator is used to establish the equivalence between the Feynman and field theoretic formalisms. It is shown that for an nth order process, each of the 2n-1 decomposed Feynman diagrams is equivalent to a certain group in the n! field theoretic diagrams. This is demonstrated for the fourth order Compton scattering of an electron by identifying the energy denominators in the two formalisms.

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