Inhomogeneous Chaplygin Gas Cosmology
Neven Bilic, Robert J. Lindebaum, Gary B. Tupper, Raoul D. Viollier
Abstract
The hypothesis that dark matter and dark energy are unified through the Chaplygin gas is reexamined. Using a generalization of the spherical model which incorporates effects of the acoustic horizon we show that an initially perturbative Chaplygin gas evolves into a mixed system containing cold dark matter in the form of gravitational condensate. Furthermore, we demonstrate that the observed CMB angular and baryonic power spectra are reproduced.
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