Dynamics of three-form dark energy with dark matter couplings

Details Dynamics of three-form dark energy with dark matter couplings Dynamics of three-form dark energy with dark matter couplings

2011-07-31

arxiv.org/abs/1108.0140v3

JCAP 1111: 036, 2011

Physics

High Energy Physics

High Energy Physics - Phenomenology

28 pages, 9 figures, 5 tables, added references and comments, added new information

Scientific paper

10.1088/1475-7516/2011/11/036

Three-form field can give rise to viable cosmological scenarios of dark energy with potentially observable signatures distinct from standard single scalar field models. In this study, the background dynamics of three-form cosmology are investigated. Our analysis suggests that the potential of three-form field should be runaway. We also investigate the possibility to solve the coincidence problem by using the coupling of three-form field to dark matter. Four types of coupling form are examined and we find that the coupling of the form $Q = \sqrt{6}\Gamma (\dot{X} + 3HX)/\kappa$ provides the possibility to solve the coincidence problem.

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