منابع مشابه
1 Eternal Universe Karim
In December of 1998, there was published a seminal work using precise measurements of supernovae magnitudes and leading to the conclusion of an apparent accelerated expansion of observed part of Universe. But when we approach the processing of these precise data from a classical ethereal position, without relativistic adjustments, we get another picture, and we believe it is the correct one. It...
متن کاملEternal inflation and the present universe
Eternally inflating universes can contain thermalized regions with different values of the cosmological parameters. In particular, the spectra of density fluctuations should be different, because of the different realizations of quantum fluctuations of the inflaton field. I discuss a general method for calculating probability distributions for such variable parameters and analyze the density fl...
متن کاملCan the Universe escape eternal acceleration ?
Recent astronomical observations of distant supernovae lightcurves, [1]-[4], suggest that the expansion of the universe has recently begun to accelerate. Acceleration is created by an antigravitational repulsive stress, like that produced by a positive cosmological constant, or universal vacuum energy. It creates a rather bleak eschatological picture. An ever-expanding universe’s future appears...
متن کاملThe asymptotic collapsed fraction in an eternal universe
We calculate the maximum fraction of matter which is able to condense out of the expanding background universe by gravitational instability – the asymptotic collapsed fraction – for any universe which is unbound and, hence, will expand forever. We solve this problem by application of a simple, pressure-free, spherically symmetric, nonlinear model for the growth of density fluctuations in the un...
متن کاملTowards a Fractal Universe
In this short review we study the state of the art of the great challenge of contemporary physics which is reconcile Quantum Theory and its best contribution the Standard Model of Particle Physics and General Relativity. The reconciliation passes undoubtedly through the idea of a fractal universe. Mathematics Subject Classification: Primary 83F05. Secondary 83C45
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ژورنال
عنوان ژورنال: Physical Review D
سال: 2002
ISSN: 0556-2821,1089-4918
DOI: 10.1103/physrevd.65.083506