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Self-consistent approximations in relativistic plasmas: Quasiparticle analysis of the thermodynamic properties

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arxiv hep-ph/9803300 v1 pith:CY4JC5UI submitted 1998-03-11 hep-ph cond-mat

Self-consistent approximations in relativistic plasmas: Quasiparticle analysis of the thermodynamic properties

classification hep-ph cond-mat
keywords relativisticapproximationsfieldthermodynamicallowsanalysisapproachconcept
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
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We generalize the concept of conserving, Phi-derivable, approximations to relativistic field theories. Treating the interaction field as a dynamical degree of freedom, we derive the thermodynamic potential in terms of fully dressed propagators, an approach which allows us to resolve the entropy of a relativistic plasma into contributions from its interacting elementary excitations. We illustrate the derivation for a hot relativistic system governed by electromagnetic interactions.

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