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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.
In physical cosmology, cosmic inflation, cosmological inflation, or just inflation, is a theory of exponential expansion of space in the very early universe.Following the inflationary period, the universe continued to expand, but at a slower rate.
The Smihula's theory of waves of technological revolutions is based on the idea that the main technological innovations are introduced in society and the economy not continually but in specific waves, and the time spans of these waves is shortening due to technological progress. [2] [3] [4]
The inflaton field is a hypothetical scalar field which is conjectured to have driven cosmic inflation in the very early universe. [1] [2] [3] The field, originally postulated by Alan Guth, [1] provides a mechanism by which a period of rapid expansion from 10 −35 to 10 −34 seconds after the initial expansion can be generated, forming a universe not inconsistent with observed spatial ...
The doubling time is the time it takes for a population to double in size/value. It is applied to population growth , inflation , resource extraction , consumption of goods, compound interest , the volume of malignant tumours , and many other things that tend to grow over time.
Chained dollars is a method of adjusting real dollar amounts for inflation over time, to allow the comparison of figures from different years. [1] The U.S. Department of Commerce introduced the chained-dollar measure in 1996. It generally reflects dollar figures computed with 2012 as the base year. [2]
The inflation rate was 3.5% for the 12-month period ending in March and 3.2% for the year ending in February. April ended a streak of consecutive months of rising inflation.
A CPI is a statistical estimate constructed using the prices of a sample of representative items whose prices are collected periodically. Sub-indices and sub-sub-indices can be computed for different categories and sub-categories of goods and services, which are combined to produce the overall index with weights reflecting their shares in the total of the consumer expenditures covered by the ...