Full causal dissipative cosmologies with stiff matter
arXiv:gr-qc/0311050 · doi:10.1142/S0218271804004645
Abstract
The general solution of the gravitational field equations for a full causal bulk viscous stiff cosmological fluid, with bulk viscosity coefficient proportional to the energy density to the power 1/4, is obtained in the flat Friedmann-Robertson-Walker geometry. The solution describes a non-inflationary Universe, which starts its evolution from a singular state. The time variation of the scale factor, deceleration parameter, viscous pressure, viscous pressure-thermodynamic pressure ratio, comoving entropy and Ricci and Kretschmann invariants is considered in detail.
6 pages, 6 figures, to appear in Int. J. Mod. Phys. D
References in corpus (3)
Cited by in corpus (6)
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- WIMP dark matter in bulk viscous non-standard cosmologies
- FIMP Dark Matter in bulk viscous non-standard cosmologies
- Nonlocal extension of causal thermodynamics of the isotropic cosmic fluid