Cosmology with adiabatic matter creation

Winfried Zimdahl; Diego Pavón

doi:https://doi.org/10.1016/0375-9601(93)90316-R

Cosmology with adiabatic matter creation

Winfried Zimdahl, Diego Pavón

Department of Physics

Research output: Contribution to journal › Article › Research › peer-review

69 Citations (Scopus)

Abstract

The influence of matter creation processes on the dynamics of the early universe is investigated within a phenomenological approach. By using a balance law for the particle number in addition to the familiar relations for viscous fluid cosmologies the whole dynamics is given explicitly in terms of the particle production rate. We argue that a sufficiently high particle production rate gives rise to an inflationary behaviour with finite values of temperature and density at the beginning of the hydrodynamic period of the universe. © 1993.

Original language	English
Pages (from-to)	57-61
Journal	Physics Letters A
Volume	176
DOIs	https://doi.org/10.1016/0375-9601(93)90316-R
Publication status	Published - 3 May 1993

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title = "Cosmology with adiabatic matter creation",

abstract = "The influence of matter creation processes on the dynamics of the early universe is investigated within a phenomenological approach. By using a balance law for the particle number in addition to the familiar relations for viscous fluid cosmologies the whole dynamics is given explicitly in terms of the particle production rate. We argue that a sufficiently high particle production rate gives rise to an inflationary behaviour with finite values of temperature and density at the beginning of the hydrodynamic period of the universe. {\textcopyright} 1993.",

author = "Winfried Zimdahl and Diego Pav{\'o}n",

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AU - Pavón, Diego

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N2 - The influence of matter creation processes on the dynamics of the early universe is investigated within a phenomenological approach. By using a balance law for the particle number in addition to the familiar relations for viscous fluid cosmologies the whole dynamics is given explicitly in terms of the particle production rate. We argue that a sufficiently high particle production rate gives rise to an inflationary behaviour with finite values of temperature and density at the beginning of the hydrodynamic period of the universe. © 1993.

AB - The influence of matter creation processes on the dynamics of the early universe is investigated within a phenomenological approach. By using a balance law for the particle number in addition to the familiar relations for viscous fluid cosmologies the whole dynamics is given explicitly in terms of the particle production rate. We argue that a sufficiently high particle production rate gives rise to an inflationary behaviour with finite values of temperature and density at the beginning of the hydrodynamic period of the universe. © 1993.

U2 - https://doi.org/10.1016/0375-9601(93)90316-R

DO - https://doi.org/10.1016/0375-9601(93)90316-R

M3 - Article

VL - 176

SP - 57

EP - 61

ER -

Cosmology with adiabatic matter creation

Abstract

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