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arXiv · gr-qc/0610104

Chaplygin Gas Cosmology - Unification of Dark Matter and Dark Energy

Neven Bilic·Gary B. Tupper·Raoul D. Viollier
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Abstract

The models that unify dark matter and dark energy based upon the Chaplygin gas fail owing to the suppression of structure formation by the adiabatic speed of sound. Including string theory effects, in particular the Kalb-Ramond field, we show how nonadiabatic perturbations allow a successful structure formation.

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Neven Bilic, Gary B. Tupper, Raoul D. Viollier. 2006-12-20. Chaplygin Gas Cosmology - Unification of Dark Matter and Dark Energy. https://doi.org/10.1088/1751-8113%2F40%2F25%2Fs33

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