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Nonvacuum taub-type cosmological model

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Abstract

The Einstein universe is a simple model describing a static cosmological spacetime, having a constant radius and a constant curvature, and, as is well known, it does not describe our universe. We propose a model which is an extension of Einstein's. Our metric, havingR × S 3 topology, describes a nonisotropic homogeneous closed (finite) universe of Bianchi type IX. This metric is similar to that of Taub, but is simpler. Unlike the Taub solution (which is a cosmological extension of the NUT solution), however, the universe described by our metric contains matter. Like the Taub metric, our metric has two positive constants (τ, T). The gravitational red shift calculated from our metric is given. Similarly to the Schwarzschild metric, which has a “singularity” atr = 2m, this metric has the same kind of “singularity” att = 2τ. The maximal extension of the coordinates in our metric is fairly analogous to that of the Schwarzschild metric.

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Carmeli, M., Manor, R. Nonvacuum taub-type cosmological model. Int J Theor Phys 29, 521–536 (1990). https://doi.org/10.1007/BF00673941

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Keywords

  • Field Theory
  • Elementary Particle
  • Simple Model
  • Quantum Field Theory
  • Positive Constant