Work

A General Analytic Formula for the Spectral Index of the Density Perturbations Produced during Inflation

Year: 1996

Type: article

Abstract: The standard calculation of the spectrum of density perturbations produced during inflation assumes that there is only one real dynamical degree of freedom during inflation. However, there is no reason to believe that this is actually the case. In this paper we derive general analytic formulae for the spectrum and spectral index of the density perturbations produced during inflation.

Source: Progress of Theoretical Physics

DOI: 10.1143/ptp.95.71

Authors: M. Sasaki, E. D. Stewart

Institutions: The University of Osaka, Lancaster University

Language: English

Topic: Cosmology and Gravitation Theories

Subfield: Astronomy and Astrophysics

Field: Physics and Astronomy

Domain: Physical Sciences

Open Access status: green

Funders: Ministry of Education, Culture, Sports, Science and Technology, Japan Society for the Promotion of Science

Awards: Quantum tunneling in the early universe, G8788323725