A Jacobian elliptic single-field inflation

The European Physical Journal C

Emanuel Gallo¹  J. R. Villanueva² 

[1] FaMAF, Universidad Nacional de Córdoba, Ciudad Universitaria, 5000, Córdoba, Argentina;Instituto de Física Enrique Gaviola (IFEG), CONICET, Ciudad Universitaria, 5000, Córdoba, Argentina;Instituto de Física y Astronomía, Universidad de Valparaíso, Gran Bretaña 1111, Valparaiso, Chile;Centro de Astrofísica de Valparaíso, Gran Bretaña 1111, Playa Ancha, Valparaiso, Chile;

关键词: Scalar Field;    Spectral Index;    Quantum Fluctuation;    Tensor Perturbation;    Cosmological Time;   

DOI  :  10.1140/epjc/s10052-015-3464-z

来源: Springer

【 摘 要 】

In the scenario of single-field inflation, this field is described in terms of Jacobian elliptic functions. This approach provides, when constrained to particular cases, analytic solutions already known in the past, generalizing them to a bigger family of analytical solutions. The emergent cosmology is analyzed using the Hamilton–Jacobi approach and then the main results are contrasted with the recent measurements obtained from the Planck 2015 data.

【 授权许可】

CC BY