CP3 Lunch - Anamorphosis in hybrid inflation: a solution to the fine-tuning problem of initial conditions? - Sébastien Clesse

by Mr Sébastien Clesse (CP3 - UCL/ULB)

Wednesday 20 May 2009, 13:00 → 13:50 Europe/Brussels

Cycl.06

Hybrid model of inflation was known to suffer a fine-tuning problem of initial fields values. By studying numerically the exact 2-fields dynamics of such models, we have shown that it can exist a relatively large part of the space of initial conditions that lead to successful inflation. Exploration of the space of initial field values, initial velocities and potential parameters has been realised by MCMC technique. These results have been shown to be generic for hybrid models in different frameworks (SUSY,SUGRA,extra-dim,...).