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Phys. Rev. D 63, 023501 (2000) [8 pages]

Qualitative analysis of dissipative cosmologies

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A. Di Prisco*
Escuela de Física, Facultad de Ciencias, Universidad Central de Venezuela, Caracas, Venezuela

L. Herrera†
Area de Física Teórica, Facultad de Ciencias, Universidad de Salamanca, E-37008 Salamanca, Spain

J. Ibáñez‡
Departamento de Física Teórica, Universidad del País Vasco, Apdo. 644, E-48080 Bilbao, Spain

Received 1 June 2000; published 14 December 2000

The evolution of a homogeneous and isotropic dissipative fluid is analyzed using dynamical systems techniques. The dissipation is driven by bulk viscous pressure and the truncated Israel-Stewart theory is used. Although almost all solutions inflate, we show that only a few of them can be considered as physical solutions since the dominant energy condition is not satisfied.

© 2000 The American Physical Society

URL:
http://link.aps.org/doi/10.1103/PhysRevD.63.023501
DOI:
10.1103/PhysRevD.63.023501
PACS:
98.80.Hw

*On leave.

†Email address: lherrera@gugu.usal.es

‡Email address: wtpibmej@lg.ehu.es

 
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