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Participant |
Cicoli, Michele | |||||||
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Institution |
Università di Bologna - Dip. di Fisica, via Irnerio 46 - Bologna - Emilia Romagna - Italy | |||||||
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Session |
ST4 |
Accepted |
Yes |
Order |
1R |
Time |
14:30 | 45' |
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Talk |
Oral abstract |
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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Pdf file |
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