Cosmological perturbations of ultrarelativistic plasmas

Schwarz D (1996)
HELVETICA PHYSICA ACTA 69(3): 194-197.

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Zeitschriftenaufsatz | Veröffentlicht | Englisch
Abstract / Bemerkung
Scalar cosmological perturbations of a weakly self-interacting plasma mixed with a perfect radiation fluid are investigated. Effects of this plasma are considered through order lambda(3/2) of perturbative thermal-field theory in the radiation dominated universe. The breakdown of thermal perturbation theory at vastly subhorizon scales is circumvented by a Pade approximant solution. Compared to collisionless plasmas the phase speed and subhorizon damping of the plasma density perturbations are changed. An exampled for a self-interacting thermal field is provided by the neutrinos with effective 4-fermion interactions.
Erscheinungsjahr
Zeitschriftentitel
HELVETICA PHYSICA ACTA
Band
69
Zeitschriftennummer
3
Seite
194-197
ISSN
PUB-ID

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Schwarz D. Cosmological perturbations of ultrarelativistic plasmas. HELVETICA PHYSICA ACTA. 1996;69(3):194-197.
Schwarz, D. (1996). Cosmological perturbations of ultrarelativistic plasmas. HELVETICA PHYSICA ACTA, 69(3), 194-197.
Schwarz, D. (1996). Cosmological perturbations of ultrarelativistic plasmas. HELVETICA PHYSICA ACTA 69, 194-197.
Schwarz, D., 1996. Cosmological perturbations of ultrarelativistic plasmas. HELVETICA PHYSICA ACTA, 69(3), p 194-197.
D. Schwarz, “Cosmological perturbations of ultrarelativistic plasmas”, HELVETICA PHYSICA ACTA, vol. 69, 1996, pp. 194-197.
Schwarz, D.: Cosmological perturbations of ultrarelativistic plasmas. HELVETICA PHYSICA ACTA. 69, 194-197 (1996).
Schwarz, Dominik. “Cosmological perturbations of ultrarelativistic plasmas”. HELVETICA PHYSICA ACTA 69.3 (1996): 194-197.

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arXiv: gr-qc/9607077

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