Probing String Theory with Modulated Cosmological Fluctuations

  title={Probing String Theory with Modulated Cosmological Fluctuations},
  author={Lev Kofman},
Superstring theory, models with extra dimensions and other SUSY models generically predict that the coupling constants are in fact vacuum expectation values of fields like the dilaton, moduli etc. Assuming some of these fields are light during inflation, we get generation of small classical inhomogeneities in these fields from inflation. Consequently, coupling constants inherit small inhomogeneities at scales much larger than the causal horizon in the early universe. After the moduli get pinned… CONTINUE READING
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