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Quintessence and Dark Matter Created by Weyl–Dirac Geometry

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Abstract

A spatially closed universe undergoing at present accelerated expansion, having a non-vanishing cosmological constant, and filled with luminous- and dark matter is described in terms of the Integrable Weyl–Dirac theory. It is shown that, during the dust-dominated period, dark matter and the quintessence pressure, the latter giving rise to acceleration: both are created by the Dirac gauge function. The behavior of two models: a nearly flat one and a well closed are considered in appropriate gauges, and plausible scenarios are obtained. The outcome of the present paper, together with results of a previous work,(31) provide a geometrically based, classical, singularity-free model of the universe, that has originated from a pure geometric Weyl–Dirac entity, passed a prematter period, the radiation-dominated era, and continues its development in the present dust period.

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  1. Department of Physics and Mathematics, University of Haifa-Oranim, Tivon, 36006, Israel

    Mark Israelit

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Israelit, M. Quintessence and Dark Matter Created by Weyl–Dirac Geometry. Foundations of Physics 32, 945–961 (2002). https://doi.org/10.1023/A:1016063430245

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