cosmic inflation

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Related to Inflationary model: Inflation theory, Inflationary theory

cosmic inflation

n.
The theory that the universe underwent a brief period of exponential expansion shortly after the Big Bang. Also called inflation theory.
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observations of supernovae from the ESO Very Large Telescope in Chile, and WMAP5 data supporting the inflationary model of the universe.
Spitzer admits that his book could not have been written before 2003 when physicists Arvind Borde, Alan Guth, and Alexander Vilenkin established that any possible inflationary model of the universe must be temporally grounded in a singularity.
The existence of large-scale coherent features in the microwave background of this form would appear to contradict the inflationary model and would be a very distinctive signature of Penrose's model," said cosmologist David Spergel of Princeton University.
They suggest that their theory addresses some of the flaws in the inflationary model of the universe and explain how theorists are using particle physics and string theory to model the new, cyclic model of the universe's origins.
The new data support some Big Bang add-on theories, such as the inflationary model, in which galaxy formation springs from small gravitational disturbances.
The inflationary model of the universe, first formulated by Guth a decade ago, suggests that the cosmos underwent a brief but tremendous growth spurt during its first microsecond.
Alternatively, a weaker magnetic field can pass the non-Gaussianity constraints and allow the primordial tensor mode to be reduced, thus removing the tension with Planck data and alleviating the problems with simple inflationary models .
Not only is inflation continuing to look like a superb fit to the data," says Alan Guth, the MIT physicist who proposed inflation in 1981, "but it still looks like the simplest inflationary models are the ones that fit best.
We will learn whether there are primordial gravitational waves as predicted by simple inflationary models, or cosmic superstrings, and we will investigate alternative cosmologies like the cyclic model.
I will argue that oscillons can be produced in a large class of well-motivated inflationary models that are consistent with CMB anisotropy measurements.
Indeed, most inflationary models generate a region of uniformity many times bigger than the relatively small neighborhood of the universe we can observe today.