Barotropic FRW cosmologies with a Dirac-like parameter
General Relativity and Quantum Cosmology
2009-11-10 v1
Abstract
Using the known connection between Schroedinger-like equations and Dirac-like equations in the supersymmetric context, we discuss an extension of FRW barotropic cosmologies in which a Dirac mass-like parameter is introduced. New Hubble cosmological parameters H_K(eta) depending on the Dirac-like parameter are plotted and compared with the standard Hubble case H_0(eta). The new H_K(eta) are complex quantities. The imaginary part is a supersymmetric way of introducing dissipation and instabilities in the barotropic FRW hydrodynamics
Keywords
Cite
@article{arxiv.gr-qc/0403045,
title = {Barotropic FRW cosmologies with a Dirac-like parameter},
author = {H. C. Rosu and R. Lopez-Sandoval},
journal= {arXiv preprint arXiv:gr-qc/0403045},
year = {2009}
}
Comments
7 pages, 4 figures, accepted at MPLA