Physics
Scientific paper
Sep 1986
adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1986phdt........13b&link_type=abstract
Ph.D. Thesis Alabama Univ., Huntsville.
Physics
Cartan Space, Cosmology, Einstein Equations, Fluid Flow, Gravitation Theory, Universe, Angular Velocity, Equations Of Motion, Expansion, Shear, Spin Dynamics, Torsion, Vorticity
Scientific paper
This treatise examines the behavior of a standard Bianchi Type 1 universe modeled as a fluid with expansion, shear, and vorticity and to see what effects torsion has on the behavior of the model. It is shown that a generalized (or power law) inflationary phase arises naturally and inevitably in a cosmology modeled as a Bianchi Type 1 anisotropic model in the self-consistent Einstein-Cartan gravitational theory with the improved Stress Energy Momentum Tensor (SEMT) with spin density of Ray and Smalley. This is made explicit by analytical solution of the field equations of motion of the liquid variables. The inflation is caused by the angular kinetic energy density due to spin. The model further elucidates the relationship between fluid vorticity, the angular velocity of the inertially-dragged tetrads, and the precession of the principal axes of the shear ellipsoid. Shear is not effective in damping the inflation.
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