Barotropic FRW cosmologies with a Dirac-like parameter
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 HK(eta) depending on the Dirac-like parameter are plotted and compared with the standard Hubble case H0(eta). The new HK(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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