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)


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.


Perturbation Series Path Integral Representation Real Time Version Quantum Field Model Real Time Theory 
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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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