1998/03/19 by F. T. Brandt, J. Frenkel · 2 citations
Mathematics · Physics and Astronomy · #Black Holes and Theoretical Physics #Cosmology and Gravitation Theories #Dispersion relation #Energy (signal processing) #Function (biology) #Gauge (firearms) #Gauge theory #Gravitation #Graviton #High-Energy Particle Collisions Research #Logarithm #Mathematical analysis #Mathematical physics #Mathematics #Physics #Quantum electrodynamics #Quantum mechanics #Self-energy #Term (time) #gr-qc #hep-ph #hep-th
paper · pdf · doi:10.1103/physrevd.58.085012
published as Phys.Rev. D58 (1998) 085012 · 27 pages, 6 figures
arxiv created 1998/03/19 · openalex publication_date 1998/09/16 · arxiv updated 2009/11/30 · openalex created_date 2025/10/10 · openalex updated_date 2026/08/05
We study the graviton self-energy function in a general gauge, using a hard thermal loop expansion which includes terms proportional to T4, T2 and log(T). We verify explicitly the gauge independence of the leading T4 term and obtain a compact expression for the subleading T2 contribution. It is shown that the logarithmic term has the same structure as the ultraviolet pole part of the T=0 self-energy function. We argue that the gauge-dependent part of the T2 contribution is effectively canceled in the dispersion relations of the graviton plasma, and present the solutions of these equations.