The Evaluation of the Collision Matrix

Phys. Rev. 80, 268 – Published 15 October 1950
G. C. Wick

Abstract

Dyson's systematic approach to the reduction of the Heisenberg S-Matrix into a sum of "graph" terms can be simplified. A notation is introduced and an algebraic theorem is proved, which allow one to handle the reduction problem quite easily and in the same manner for any type of field.

DOI: http://dx.doi.org/10.1103/PhysRev.80.268

  • Received 17 April 1950
  • Published in the issue dated October 1950

© 1950 The American Physical Society

Authors & Affiliations

G. C. Wick

  • University of California, Berkeley, California

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