The primordial fluctuations in the mass density may have arisen from quantum fluctuations in a scalar field that occurred during an inflationary era. Fluctuations which arose in this way can be highly non-Gaussian. Also the bad infrared properties of the propagator for a massless scalar field in de Sitter space can translate itself into a power spectrum, for the two-point spatial correlation of objects that do not trace the mass, which behaves like K^(-3), at small wavenumbers k
32 pages, 2 figures, matches published version: discussion expanded, references added, conclusions u...
The shape of the primordial fluctuation spectrum is probed by cosmic microwave background fluctuatio...
The process of gravitational instability initiated by small primordial density perturbations is a vi...
The primordial fluctuations in the mass density may have arisen from quantum fluctuations in a scala...
The primordial mass density fluctuations may have arisen from quantum fluctuations in a (massless) s...
Natural primordial mass density fluctuations are those for which the probability distribution, for t...
A calculation of the one-mode occupation numbers for vacuum fluctuations of massive fields in De Sit...
We propose that cosmological density perturbation may originate from passive fluctuations of the inf...
In the framework of inflationary cosmology I study some aspects of nonequilibrium thermodynamics for...
We find that the amplitude of quantum fluctuations of the invariant de Sitter vacuum coincides exact...
Cosmological inflation, which postulates a period of accelerated expansion in the very early univers...
43 pagesInternational audienceWe show that inflationary cosmology may be used to test the statistica...
We study the correction to the scale invariant power spectrum of a scalar field on de Sitter space f...
We discuss the effect of super-Hubble cosmological fluctuations on the locally measured Hubble expan...
We consider the influence of mode - mode coupling in the inflaton field on the spectrum of primordia...
32 pages, 2 figures, matches published version: discussion expanded, references added, conclusions u...
The shape of the primordial fluctuation spectrum is probed by cosmic microwave background fluctuatio...
The process of gravitational instability initiated by small primordial density perturbations is a vi...
The primordial fluctuations in the mass density may have arisen from quantum fluctuations in a scala...
The primordial mass density fluctuations may have arisen from quantum fluctuations in a (massless) s...
Natural primordial mass density fluctuations are those for which the probability distribution, for t...
A calculation of the one-mode occupation numbers for vacuum fluctuations of massive fields in De Sit...
We propose that cosmological density perturbation may originate from passive fluctuations of the inf...
In the framework of inflationary cosmology I study some aspects of nonequilibrium thermodynamics for...
We find that the amplitude of quantum fluctuations of the invariant de Sitter vacuum coincides exact...
Cosmological inflation, which postulates a period of accelerated expansion in the very early univers...
43 pagesInternational audienceWe show that inflationary cosmology may be used to test the statistica...
We study the correction to the scale invariant power spectrum of a scalar field on de Sitter space f...
We discuss the effect of super-Hubble cosmological fluctuations on the locally measured Hubble expan...
We consider the influence of mode - mode coupling in the inflaton field on the spectrum of primordia...
32 pages, 2 figures, matches published version: discussion expanded, references added, conclusions u...
The shape of the primordial fluctuation spectrum is probed by cosmic microwave background fluctuatio...
The process of gravitational instability initiated by small primordial density perturbations is a vi...