Interacting spinor and scalar fields in Bianchi type-I Universe filled with viscous fluid: exact and numerical solutions

Abstract

We consider a self-consistent system of spinor and scalar fields within the framework of a Bianchi type I gravitational field filled with viscous fluid in presence of a $\Lambda$ term. Exact self-consistent solutions to the corresponding spinor, scalar and BI gravitational field equations are obtained in terms of $\tau$, where $\tau$ is the volume scale of BI universe. System of equations for $\tau$ and $\ve$, where $\ve$ is the energy of the viscous fluid, is deduced. Some special cases allowing exact solutions are thoroughly studied.

18 pages, 6 figures

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• Bianchi type I universe with viscous fluid
• Magneto-dilatonic Bianchi-I cosmology: isotropization and singularity problems
• Bianchi type I cosmological model with a viscous fluid
• Bianchi type I universe with viscous fluid: A qualitative analysis
• Anisotropic Cosmological Models with Energy Density Dependent Bulk Viscosity
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Cited by in corpus (2)

• Singularity-free model of electrically charged fermionic particles and gauged Q-balls
• Anisotropic cosmological models with spinor and scalar fields and viscous fluid in presence of a $\Lambda$ term: qualitative solutions