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Coupled quintessence and the coincidence problem
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We consider a model of interacting cosmological constant/quintessence, where dark matter and dark energy behave as, respectively, two coexisting phases of a fluid, a thermally excited Bose component and a condensate, respectively. In a simple phenomenological model for the dark components interaction we find that their energy density evolution is strongly coupled during the universe evolution. This feature provides a possible way out for the coincidence problem affecting many quintessence models.
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Cited by 2 Pith papers
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The model-independent degeneracy-breaking point in cosmological models with interacting Dark Energy and Dark Matter
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