A Grassmann representation of the Hubble parameter

Details A Grassmann representation of the Hubble parameter A Grassmann representation of the Hubble parameter

2001-09-20

arxiv.org/abs/gr-qc/0109071v6

Mod.Phys.Lett. A16 (2001) 2359

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

4 pages, no figures

Scientific paper

10.1142/S0217732301005357

The Riccati equation for the Hubble parameter H of barotropic FRW cosmologies in conformal time for \kappa \neq 0 spatial geometries and in comoving time for the \kappa =0 geometry, respectively, is generalized to odd Grassmannian time parameters. We obtain a system of simple differential equations for the four supercomponents (two of even type and two of odd type) of the Hubble superfield function {\cal H} that is explicitly solved. The second even Hubble component does not have an evolution governed by general relativity although there are effects of the latter upon it

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