PoS - Proceedings of Science
Volume 427 - 11th International Conference of the Balkan Physical Union (BPU11) - S03-GC Gravitation and Cosmology
Family of Gauge Invariant Variables for Scalar Perturbations During Inflation
N. Vesić*, D.D. Dimitrijević, G.S. Djordjević, M. Milošević and M. Stojanovic
Full text: pdf
Supplementary files:
Published on: October 02, 2023
Abstract
Family of perturbation invariant variables for scalar cosmological perturbations is discussed in this paper. We follow the idea for obtaining the well known scalar-type perturbation invariants, i.e. the two Bardeen’s potentials, the Mukhanov-Sasaki variable and perturbation of an inflaton field, and obtained a family of scalar perturbation invariants. Based on this family, we obtained five linearly independent perturbation invariants and expressed the Bardeen’s potentials, the Mukhanov-Sasaki variable and perturbation of an inflaton field with respect to them.
DOI: https://doi.org/10.22323/1.427.0059
How to cite

Metadata are provided both in "article" format (very similar to INSPIRE) as this helps creating very compact bibliographies which can be beneficial to authors and readers, and in "proceeding" format which is more detailed and complete.

Open Access
Creative Commons LicenseCopyright owned by the author(s) under the term of the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License.