Barotropic FRW cosmologies with a Dirac-like parameter

Details Barotropic FRW cosmologies with a Dirac-like parameter Barotropic FRW cosmologies with a Dirac-like parameter

2004-03-11

arxiv.org/abs/gr-qc/0403045v1

Mod.Phys.Lett. A19 (2004) 1529-1535

Astronomy and Astrophysics

Astrophysics

General Relativity and Quantum Cosmology

7 pages, 4 figures, accepted at MPLA

Scientific paper

10.1142/S0217732304013763

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

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