Article (Scientific journals)
Approximate spectral functions in thermal field theory
Henning, P. A.; Polyatchenko, E.; Schilling, Tanja et al.
1996In Physical Review. D, Particles and Fields, 54 (5239), p. 1-5
Peer reviewed
 

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Abstract :
[en] Causality requires that the ~anti!commutator of two interacting field operators vanishes for spacelike coordinate differences. This implies that the Fourier transform of the spectral function of this quantum field should vanish in the spacelike domain. We find that this requirement imposes some constraints on the use of resummed propagators in high temperature gauge theory.
Disciplines :
Physics
Identifiers :
UNILU:UL-ARTICLE-2012-1211
Author, co-author :
Henning, P. A.;  Theoretical Physics, Gesellschaft für Schwerionenforschung (GSI)
Polyatchenko, E.;  Theoretical Physics, Gesellschaft für Schwerionenforschung (GSI)
Schilling, Tanja ;  Theoretical Physics, Gesellschaft für Schwerionenforschung (GSI)
Bros, J.;  CEA, Service Physique Théorique
Language :
English
Title :
Approximate spectral functions in thermal field theory
Publication date :
1996
Journal title :
Physical Review. D, Particles and Fields
ISSN :
0556-2821
Publisher :
American Physical Society, College Park, United States - Maryland
Volume :
54
Issue :
5239
Pages :
1-5
Peer reviewed :
Peer reviewed
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since 07 October 2013

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