Pryce-Hoyle Tensor in a Combined Einstein-Cartan-Brans-Dicke Model |
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Authors: | Marcelo Samuel Berman |
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Affiliation: | (1) Instituto Albert Einstein/Latinamerica, Av. Candido Hartmann, 575, #17, 80730-440 Curitiba, PR, Brazil |
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Abstract: | In addition to introducing matter injection through a scalar field determined by Pryce-Hoyle tensor, we also combine it with a BCDE (Brans-Dicke-Einstein-Cartan) theory with lambda-term developed earlier by Berman (Astrophys. Space Sci. 314:79–82, 2008), for inflationary scenario. It involves a variable cosmological constant, which decreases with time, jointly with energy density, cosmic pressure, shear, vorticity, and Hubble’s parameter, while the scale factor, total spin and scalar field increase exponentially. The post-inflationary fluid resembles a perfect one, though total spin grows, but not the angular speed (Berman, in Astrophys. Space Sci. 312:275, 2007). The Pryce-Hoyle tensor, which can measured by the number of injected particles per unit proper volume and time, as well as shear and vorticity, can be neglected in the aftermath of inflation (“no-hair”). |
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Keywords: | Cosmology Einstein Brans-Dicke Cosmological term Shear Spin Vorticity Inflation Einstein-Cartan Torsion |
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