期刊
MODERN PHYSICS LETTERS A
卷 18, 期 12, 页码 831-842出版社
WORLD SCIENTIFIC PUBL CO PTE LTD
DOI: 10.1142/S0217732303009940
关键词
quintessence; dark energy; coincidence problem; condensate
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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