Scalar Field cosmology from a Modified Poisson Algebra
General Relativity and Quantum Cosmology
2022-11-23 v1
Abstract
We investigate the phase space of a scalar field theory obtained by minisuperspace deformation. We consider quintessence or phantom scalar fields in the action which arise from minisuperspace deformation on the Einstein-Hilbert action. We use a modified Poisson Algebra where Poisson brackets are the -deformed ones and are related to the Moyal-Weyl star product. We discuss early and late-time attractors, and we reconstruct the cosmological evolution. We show that the model can have CDM model as a future attractor if we initially consider a massless scalar field without a cosmological constant term.
Cite
@article{arxiv.2211.12357,
title = {Scalar Field cosmology from a Modified Poisson Algebra},
author = {Genly Leon and Alfredo D. Millano and Andronikos Paliathanasis},
journal= {arXiv preprint arXiv:2211.12357},
year = {2022}
}
Comments
13 pages, 8 compound figures