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  Perturbative Peculiarities of Quantum Field Theories at High Temperatures

Bischer, I., Grandou, T., & Hofmann, R. (2019). Perturbative Peculiarities of Quantum Field Theories at High Temperatures. Universe, 5(3): 81. doi:10.3390/universe5030081.

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 Creators:
Bischer, Ingolf1, Author              
Grandou, Thierry2, Author
Hofmann, Ralf2, Author
Affiliations:
1Werner Rodejohann - ERC Starting Grant, Junior Research Groups, MPI for Nuclear Physics, Max Planck Society, ou_907556              
2external, ou_persistent22              

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 Abstract: Revisiting the fast fermion damping rate calculation in a thermalized QED and/or QCD plasma in thermal equilibrium at four-loop order, focus is put on a peculiar perturbative structure which has no equivalent at zero-temperature. Not surprisingly, and in agreement with previous C*-algebraic analyses, this structure renders the use of thermal perturbation theory more than questionable.

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 Dates: 2019-03-14
 Publication Status: Published online
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 Identifiers: DOI: 10.3390/universe5030081
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Title: Universe
Source Genre: Journal
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Pages: - Volume / Issue: 5 (3) Sequence Number: 81 Start / End Page: - Identifier: -