Welcome to the new version of CaltechAUTHORS. Login is currently restricted to library staff. If you notice any issues, please email coda@library.caltech.edu
Published July 1955 | Published
Journal Article Open

Functional Integrals and Adiabatic Limits in Field Theory

Deser, S. ORCID icon

Abstract

The behavior of a system of coupled fields as some of the particles become very heavy is investigated. By means of a technique expressing the relevant exact Green's functions as functional integrals, the limiting process need only be performed for bare one-particle propagators to get the result for the exact functions. It is shown that the resultant propagators are those for the remaining finite masses moving in external fields generated by the heavy particles acting as static point sources. The situation in which the coupling to the intermediate fields has no simple nonrelativistic limit is also discussed.

Additional Information

© 1955 American Physical Society. (Received March 26, 1955) I wish to thank Dr. Robert Oppenheimer and the Institute for Advanced Study for their hospitality, and Dr. R. L. Arnowitt for interesting conversations.

Attached Files

Published - PhysRev.99.325.pdf

Files

PhysRev.99.325.pdf
Files (321.8 kB)
Name Size Download all
md5:968f2384fc4218551ec132053f70d345
321.8 kB Preview Download

Additional details

Created:
August 19, 2023
Modified:
October 23, 2023