Bound States in Quantum Field Theory
- 15 October 1951
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 84 (2) , 350-354
- https://doi.org/10.1103/physrev.84.350
Abstract
The relativistic two-body equation of Bethe and Salpeter is derived from field theory. It is shown that the Feynman two-body kernel may be written as a sum of wave functions over the states of the system. These wave functions depend exponentially on the energies of the states to which they correspond and therefore provide a means of calculating energy levels of bound states.Keywords
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