Search results
Results From The WOW.Com Content Network
A number of inflation model predictions have been confirmed by observation; for example temperature anisotropies observed by the COBE satellite in 1992 exhibit nearly scale-invariant spectra as predicted by the inflationary paradigm and WMAP results also show strong evidence for inflation. [4] However, some scientists dissent from this position.
Vacuum state is a configuration of quantum fields representing a local minimum (but not necessarily a global minimum) of energy. Inflationary models propose that at approximately 10 −36 seconds after the Big Bang, vacuum state of the Universe was different from the one seen at the present time: the inflationary vacuum had a much higher energy density.
Starobinsky inflation is a modification of general relativity used to explain cosmological inflation. It was the first model to describe how the universe could have gone through an extremely rapid period of exponential expansion.
Inflation has been a feature of history during the entire period when money has been used as a means of payment. One of the earliest documented inflations occurred in Alexander the Great's empire 330 BCE. [26] Historically, when commodity money was used, periods of inflation and deflation would alternate depending on the condition of the ...
The name "NAIRU" arises because with actual unemployment below it, inflation accelerates, while with unemployment above it, inflation decelerates. With the actual rate equal to it, inflation is stable, neither accelerating nor decelerating. One practical use of this model was to explain stagflation, which confounded the traditional Phillips curve.
The "Big Bang" scenario, with cosmic inflation and standard particle physics, is the only cosmological model consistent with the observed continuing expansion of space, the observed distribution of lighter elements in the universe (hydrogen, helium, and lithium), and the spatial texture of minute irregularities (anisotropies) in the CMB radiation.
Eternal inflation is a hypothetical inflationary universe model, which is itself an outgrowth or extension of the Big Bang theory. According to eternal inflation, the inflationary phase of the universe's expansion lasts forever throughout most of the universe. Because the regions expand exponentially rapidly, most of the volume of the universe ...
The concept of core inflation as aggregate price growth excluding food and energy was introduced in a 1975 paper by Robert J. Gordon. [1] This is the definition of "core inflation" most used for political purposes. The core inflation model was subsequently developed and advocated by Otto Eckstein, in a paper published in 1981. [2]