High-Energy Astrophysics American and Soviet Perspectives/Proceedings from the U.S.-U.S.S.R. Workshop on High-Energy Astrophysics (1991) / Chapter Skim
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CHAOTIC INFLATIONARY UNIVERSE AND THE ANISOTROPY OF THE LARGE-SCALE STRUCTURE
CHAOTIC INFLATIONARY UNIVERSE AND THE ANISOTROPY OF THE LARGE-SCALE STRUCTURE
Pages 68-76
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From page 68... ...
In spite of the great popularity of the chaotic inflationary universe models, it is usually taken for granted that their specific features (such as strong global inhomogeneity of the universe) can hardly lead to any observable consequences.
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From page 69... ...
In this phenomenon the an~sotropy of the microwave background radiation is due to large-scale metric inhomogeneity. In our phenomenon the large-scale metric inhomogeneity in a similar way influences vacuum fluctuations at the inflationary stage, resulting in the structure anisotropy.
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3H dy ' then using also the approximate expression valid at the inflationary stage H2 8~ V( ~ we obtain from (2)
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are unperturbed mode functions, and ak, a+ are the usual annihilation~reation operators.
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. Developing Ck(:i~ in powers of ~ and then pro ceeding to the integration over new wave numbers k-VC0 ~=0 we will come to the standard shape of the correlation function (~(X)
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(~29) Now let us take into account one of the peculiar features of the chaotic inflationary universe.
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must be taken over a history of the domain of which our observable region has originated. The size of this domain at all times during the inidationa~y stage must be taken to be of the order of the Hubble size.
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So we use a field theoretical approach hoping that further investigations based on a more advanced theory will not change our result dramatically. In context of the superstring theory, the phenomenon discussed might be caused by string vacuum polarization due to large-scale inhomogeneity of the inflationary universe.
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From page 76... ...
1980. I-he Large-Scale Structure of the Universe Princeton University Press, Pnnceton.
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