Coupled quintessence and the coincidence problem

被引：125

作者：

Mangano, G

Miele, G

Pettorino, V

机构：

[1] Univ Naples Federico II, Dipartimento Fis, I-80126 Naples, Italy

[2] Ist Nazl Fis Nucl, Sez Napoli, I-80126 Naples, Italy

来源：

MODERN PHYSICS LETTERS A | 2003年 / 18卷 / 12期

关键词：

quintessence; dark energy; coincidence problem; condensate;

D O I：

10.1142/S0217732303009940

中图分类号：

P1 [天文学];

学科分类号：

0704 ;

摘要：

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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页码：831 / 842

页数：12

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