Showing 1996 · gr-qcShow all
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gr-qc1996
Collisional equilibrium, particle production and the inflationary universe
Winfried Zimdahl, Josep Triginer, Diego Pavon
Particle production processes in the expanding universe are described within a simple kinetic model. The equilibrium conditions for a Maxwell-Boltzmann gas with variable particle n…
gr-qc1996
Qualitative Analysis of Causal Cosmological Models
Vicenç Mendez, Josep Triginer
The Einstein's field equations of Friedmann-Robertson-Walker universes filled with a dissipative fluid described by both the {\em truncated} and {\em non-truncated} causal transpor…
gr-qc1996
Kinetic theory for particle production
Josep Triginer, Winfried Zimdahl, Diego Pavon
Recently, the phenomenological description of cosmological particle production processes in terms of effective viscous pressures has attracted some attention. Using a simple creati…