Inflationary Cosmology and Quantum Effects in the Early Universe
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In this chapter we briefly introduce the Friedmann-Robertson-Walker (FRW) model of cosmology and discuss some of its difficulties, like the horizon and flatness problem. We then describe the inflationary model of Guth (1981)  and its modified version — the new inflationary scenario which attempts to solve these problems with some success. The Coleman-Weinberg potential  which is necessary for the slow phase transition, is also introduced in the context of grand unified theory of elementary particles (SU(5) GUTS).
KeywordsEarly Universe Quantum Effect Curve Space Time Grand Unify Theory Back Reaction
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