# Inflationary universe: A possible solution to the horizon and flatness problems

@article{Guth1981InflationaryUA, title={Inflationary universe: A possible solution to the horizon and flatness problems}, author={Alan Harvey Guth}, journal={Physical Review D}, year={1981}, volume={23}, pages={347-356} }

The standard model of hot big-bang cosmology requires initial conditions which are problematic in two ways: (1) The early universe is assumed to be highly homogeneous, in spite of the fact that separated regions were causally disconnected (horizon problem); and (2) the initial value of the Hubble constant must be fine tuned to extraordinary accuracy to produce a universe as flat (i.e., near critical mass density) as the one we see today (flatness problem). These problems would disappear if, in…

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