Constraining auto-interaction terms in α-attractor supergravity models of inflation

7th Young Researcher Meeting

Di Marco, A.^1 ; Cabella, P.^1 ; Vittorio, N.^1

Physics Department, Tor Vergata University, Cosmology Group, Via della Ricerca Scientifica 1, 00133, Italy^1

关键词: Cosmic microwave backgrounds;    Effective potentials;    Global minima;    Inflationary mechanisms;    Interaction term;    Supergravity model;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/841/1/012034/pdf
DOI  :  10.1088/1742-6596/841/1/012034

来源: IOP

【 摘 要 】

The inflationary mechanism has become the paradigm of modern cosmology over the last thirty years. However, there are several aspects of inflationary physics that are still to be addressed, like the shape of the inflationary potential. Regarding this, the so-called α-attractor models show interesting properties. In this work, the reconstruction of the effective potential around the global minimum of these particular potentials is provided, assuming a detection of permille-order for the tensor-to-scalar-ratio by forthcoming cosmic microwave background or gravitational waves experiments.