Tachyon warm-intermediate inflation in the light of Planck data

The European Physical Journal C

Spyros Basilakos¹  Ahmad Mehrabi²  Vahid Kamali² 

[1] Academy of Athens, Research Center for Astronomy and Applied Mathematics, Soranou Efessiou 4, 11-527, Athens, Greece;Department of Physics, Bu-Ali Sina University, 65178-38695, Hamedan, Iran;

关键词: Spectral Index;    Inflationary Model;    Tachyon Field;    Planck Data;    Inflationary Scenario;   

DOI  :  10.1140/epjc/s10052-016-4380-6

来源: Springer

【 摘 要 】

We study the main properties of the warm tachyon inflation model in the framework of the RSII braneworld based on Barrow’s solution for the scale factor of the universe. Within this framework we calculate analytically the basic slow-roll parameters for different versions of warm inflation. We test the performance of this inflationary scenario against the latest observational data and we verify that the predicted spectral index and the tensor-to-scalar fluctuation ratio are in excellent agreement with those of Planck 2015. Finally, we find that the current predictions are consistent with those of viable inflationary models.

【 授权许可】

CC BY