Astrophysics and Space Science

, Volume 226, Issue 2, pp 273–307 | Cite as

Twin universes cosmology

  • Jean-Pierre Petit


Starting from the field equationS =χ(T -A(T)), presented in a former paper, we present a test result, based on numerical simulations, giving a new model applied to the very large structure of the Universe. A theory of inverse gravitational lensing is developed, in which the observed effects could be due mainly to the action of surrounding ‘antipodal matter’. This is an alternative to the explanation based on dark matter existence. We then develop a cosmological model. Because of the hypothesis of homogeneity, the metric must be a solution of the equationS = 0, although the total mass of the Universe is non-zero. In order to avoid the trivial solutionR = constant ×t, we consider a model with ‘variable constants’. Then we derive the laws linking the different constants of physics:G, c, h, m; in order to keep the basic equations of physics invariant, so that the variation of these constants is not measurable in the laboratory, the only effect of this process being the red shift, due to the secular variation of these constants. All the energies are conserved, but not the masses. We find that all of the characteristic lengths (Schwarzschild, Jeans, Compton, Planck) vary like the characteristic lengthR, from where all the characteristic times vary like the cosmic timet. As the energy of the photon is conserved over its flight, the decrease of its frequencyν is due to the growth of the Planck constanth ≈ t. In such conditions the field equations have a single solution, corresponding to a negative curvature and to an evolution law:R ≈ t2/3.

The model is no longer isentropic ands ≈ logt. The cosmologic horizon varies likeR, so that the homogeneity of the Universe is ensured at any time which constitues an alternative to the theory of inflation. We re-find, for moderate distances, Hubble's law. A new law: distance =f(z) is derived, very close to the classical one for moderate red shifts.


Dark Matter Total Mass Characteristic Time Field Equation Characteristic Length 
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© Kluwer Academic Publishers 1995

Authors and Affiliations

  • Jean-Pierre Petit
    • 1
  1. 1.Observatory of MarseilleFrance

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