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arxiv: 0811.1957 · v1 · submitted 2008-11-12 · 🌌 astro-ph

Disformal quintessence

classification 🌌 astro-ph
keywords disformalfieldaccelerationalleviatingcanoniccausalitycoincidenceconditions
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A canonic scalar field minimally coupled to a disformal metric generated by the field itself is considered. Causality and stability conditions are derived for such a field. Cosmological effects are studied and it is shown that the disformal modification could viably trigger an acceleration after a scaling matter era, thus possibly alleviating the coincidence problem.

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