[phys4phys] GPF seminar, 30th May

[Maja Buric]

Dear colleagues,

the next GPF seminar will be given by Goran Djordjevic on Friday,
23th of May at 11.15, in the small seminar room on the second
floor of IPB.


Title:

Scaling Invariance of Perturbations in k-Inflation Models


Abstract:

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.



Link:
https://gravityserver.ipb.ac.rs/b/mar-ae0-f4q-qww


Best regards,
Maja Buric