1996/02/09 by F. T. Brandt, F T Brandt, D. G. C. McKeon +2 · 1 citation
Biochemistry, Genetics and Molecular Biology · Earth and Planetary Sciences · Mathematics · Physics and Astronomy · #Gas Dynamics and Kinetic Theory #High-pressure geophysics and materials #Laser-Plasma Interactions and Diagnostics #Nutrition, Genetics, and Disease #hep-th
paper · pdf · doi:10.1103/physrevd.54.6435
published as Phys.Rev. D54 (1996) 6435-6443 · 16 pages, ReVTeX
arxiv created 1996/02/09 · openalex publication_date 2006/01/01 · arxiv updated 2009/11/30 · openalex created_date 2016/06/24 · openalex updated_date 2026/04/28
It has been shown how on-shell forward scattering amplitudes (the ``Barton expansion'') and quantum mechanical path integral (QMPI) can both be used to compute temperature dependent effects in thermal field theory. We demonstrate the equivalence of these two approaches and then apply the QMPI to compute the high temperature expansion for the four-point function in QED, obtaining results consistent with those previously obtained from the Barton expansion.