Self-Consistent Approximations in Relativistic Plasmas: Quasiparticle Analysis of the Thermodynamic Properties |
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Authors: | Benoît Vanderheyden Gordon Baym |
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Institution: | 1. Department of Physics, University of Illinois at Urbana-Champaign, Urbana, Illinois, 61801
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Abstract: | We generalize the concept of conserving, Φ-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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