Dark viscous fluid coupled with dark matter and future singularity
Dipartimento di Fisica, Università di Trento, Trento, Italy
2 Istituto Nazionale di Fisica Nucleare, Gruppo Collegato di Trento, Trento, Italy
Revised: 22 June 2010
Published online: 14 September 2010
We study the effects of a viscous fluid coupled with dark matter in our universe. We consider bulk viscosity in the cosmic fluid and we assume the existence of a coupling between fluid and dark matter, in order to reproduce a stable de Sitter universe protected against future-time singularities. More general inhomogeneous fluids are studied related to future singularities.
© Springer-Verlag / Società Italiana di Fisica, 2010