Geodesic Deviation Equation in Bianchi Cosmologies

Abstract

We present the Geodesic Deviation Equation (GDE) for the Friedmann-Robertson-Walker(FRW) universe and we compare it with the equation for Bianchi type I model. We justify consider this cosmological model due to the recent importance the Bianchi Models have as alternative models in cosmology. The main property of these models, solutions of Einstein Field Equations (EFE) is that they are homogeneous as the FRW model but they are not isotropic. We can see this because they have a non-null Weyl tensor in the GDE.

Submitted to Journal of Physics: Conference Series (JPCS), ERE2009

References in corpus (2)

• Wilkinson Microwave Anisotropy Probe (WMAP) Three Year Results: Implications for Cosmology
• Anisotropic Cosmological Constant and the CMB Quadrupole Anomaly

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• Shear Dynamics in Bianchi I Cosmology