[hep-th] seminar, petak 30. maj

[Maja Buric]

Pozdrav svima,

u petak 30. maja u 11.15 u maloj seminarskoj sali IF-a seminar će
držati Goran Đorđević:


Naslov:

Scaling Invariance of Perturbations in k-Inflation Models


Apstrakt:

The study of the background and perturbations in k-essence inflation models is
presented. It is shown that a general k-essence exhibits a simple scaling 
property. The accent is given on study of the two classes of k-inflation models
with the potential characterized by an inflection point. This study allow 
to redefine input parameters so that the perturbations spectra satisfy the
correct normalization at the CMB pivot scale. The background and perturbation
equations are integrated numerically for two specific models. The abundance
of primordial black holes today within the two models is briefly reviewed.



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