Schedule Oct 24, 2003
Probing extra dimensions with cosmological fluctuations
Lev Kofman (University of Toronto)

We discuss new mechanisms to produce primordial cosmological fluctuations from inflation, related to theories with extra dimensions. One is based on the fluctuations of the coupling constants after inflation, which generate modulated cosmological perturbations. Another one is related to the induced metric fluctuations in braneworld inflation. We also discuss the tachyonic instability of inflating braneworlds.

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