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Structure of (real-time) P(⌽)2 Green’s Functions

  • J. Dimock
Conference paper
Part of the Acta Physica Austriaca book series (FEWBODY, volume 16/1976)

Abstract

By Green’s functions in the P(⌽)2 model we shall mean vacuum expectation values of time-ordered products of field operators. The central role played by such objects in any many-body quantum mechanical problem is well-established. Here we discuss three general structural questions for Green’s functions: first, how to compute derivatives with respect to coupling constants; second, how to take them apart by a kind of pull-through formula; and finally as an application of the first two, we sketch a proof that the perturbation series is asymptotic to all orders.

Keywords

Perturbation Series Path Integral Representation Real Time Version Quantum Field Model Real Time Theory 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

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Copyright information

© Springer-Verlag 1976

Authors and Affiliations

  • J. Dimock
    • 1
  1. 1.Département de Physique ThéoriqueUniversité de GenèveSwitzerland

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