Most probable small field inflationary potentials Academic Article uri icon

abstract

  • Abstract: Inflationary potentials, with small field excursions, described by a 6th degree polynomial are studied. We solve the Mukhanov-Sasaki equations exactly and employ a probabilistic approach as well as multinomial fitting to analyse the results. We identify leading candidates which yield a tensor-to-scalar ratio $ r= 0.01$ in addition to currently allowed Cosmic Microwave Background (CMB) spectrum, and observables. Additionally, we find a significant inter-dependence of CMB observables in these models. This might be an important effect for future analyses, since the different moments of the primordial power spectrum are taken to independent in the usual Markov chain Monte Carlo methods. Subjects: Cosmology and Nongalactic Astrophysics (astro-ph. CO); General Relativity and Quantum Cosmology (gr-qc)

publication date

  • January 22, 2018