Tamm-Dancoff Method
- 1 September 1954
- journal article
- research article
- Published by American Physical Society (APS) in Physical Review B
- Vol. 95 (5), 1313-1317
- https://doi.org/10.1103/physrev.95.1313
Abstract
The Tamm-Dancoff equations are expressed in a concise four-dimensional form. The difficulty of renormalizing the new Tamm-Dancoff equation of Dyson is discussed. The Lévy-Klein approximation to the Bethe-Salpeter equation is derived as an approximation to the old Tamm-Dancoff equation, and a new renormalizable equation is derived analogously as an approximation to the new Tamm-Dancoff equation. The latter approximation is better than the former.Keywords
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