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Speaker |
Cicoli, Michele |
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| Talk Title |
Recent developments in string model-building and cosmology |
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Abstract |
In this talk I will discuss recent developments in moduli stabilisation, SUSY breaking and chiral D-brane constructions together with several interesting features of cosmological models built in the framework of type IIB string compactifications. I will show that a non-trivial pre-inflationary dynamics can give rise to a power loss at large angular scales for which there have been mounting observational hints from both WMAP and Planck. I will then describe different stringy embeddings of inflationary models which yield large or small tensor modes. I will finally argue that reheating is generically driven by the decay of the lightest modulus which can produce, together with Standard Model particles, also non-thermal dark matter and light hidden sector degrees of freedom that behave as dark radiation. |
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