Statefinders and observational measurement of superenergy
General Relativity and Quantum Cosmology
2010-03-02 v1 Cosmology and Nongalactic Astrophysics
High Energy Physics - Theory
Abstract
The superenergy of the universe is a tensorial quantity and it is a general relativistic analogue of the Appell's energy of acceleration in classical mechanics. We propose the measurement of this quantity by the observational parameters such as the Hubble parameter, the deceleration parameter, the jerk and the snap (kerk) known as statefinders. We show that the superenergy of gravity requires only the Hubble and deceleration parameter to be measured, while the superenergy of matter requires also the measurement of the higher-order characteristics of expansion: the jerk and the snap. In such a way, the superenergy becomes another parameter characterizing the evolution of the universe.
Keywords
Cite
@article{arxiv.0905.4534,
title = {Statefinders and observational measurement of superenergy},
author = {Mariusz P. Dabrowski and Janusz Garecki},
journal= {arXiv preprint arXiv:0905.4534},
year = {2010}
}
Comments
REVTEX 4.0, 7 pages, no figures