Abstract:A NONRELATIVISTIC derivation of the two-particle potential between two fermions, due to interaction with a boson field, was outlined by Tamm 1 and Dancoff 2 and generalized by Levy, 3 including higher-order terms in the interaction potential. Following Levy's treatment, the interaction terms of higher order can be represented by nonrelativistic graphs, distinguishing in addition the sequence of transitions and intermediate states. In this treatment, it does not seem to be understandable why the strongly diverg… Show more
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