Article ID Journal Published Year Pages File Type
10725856 Physics Letters B 2009 6 Pages PDF
Abstract
The properties of quintessence are examined through the study of the variation of the electromagnetic coupling. We consider two simple quintessence models with a modified exponential potential and study the parameter space constraints derived from the existing observational bounds on the variation of the fine structure constant and the most recent Wilkinson Microwave Anisotropy Probe observations.
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Related Topics
Physical Sciences and Engineering Physics and Astronomy Nuclear and High Energy Physics
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The variation of the electromagnetic coupling and quintessence
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