Interacting energy components and observational H (z) data

Hao Wei; Shuang Nan Zhang

doi:10.1016/j.physletb.2007.08.056

Interacting energy components and observational H (z) data

Hao Wei^*
, Shuang Nan Zhang

^*Corresponding author for this work

Tsinghua University
Department of Physics
Key Laboratory of Particle Astrophysics
CAS - Institute of High Energy Physics
University of Alabama in Huntsville

Research output: Contribution to journal › Article › peer-review

44 Citations (Scopus)

Abstract

In this Letter, we extend our previous work [H. Wei, S.N. Zhang, Phys. Lett. B 644 (2007) 7, astro-ph/0609597], and compare eleven interacting dark energy models with different couplings to the observational H (z) data. However, none of these models is better than the simplest ΛCDM model. This implies that either more exotic couplings are needed in the cosmological models with interaction between dark energy and dust matter, or there is no interaction at all. We consider that this result is disadvantageous to the interacting dark energy models studied extensively in the literature.

Original language	English
Pages (from-to)	139-147
Number of pages	9
Journal	Physics Letters, Section B: Nuclear, Elementary Particle and High-Energy Physics
Volume	654
Issue number	5-6
DOIs	https://doi.org/10.1016/j.physletb.2007.08.056
Publication status	Published - 18 Oct 2007
Externally published	Yes

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10.1016/j.physletb.2007.08.056

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abstract = "In this Letter, we extend our previous work [H. Wei, S.N. Zhang, Phys. Lett. B 644 (2007) 7, astro-ph/0609597], and compare eleven interacting dark energy models with different couplings to the observational H (z) data. However, none of these models is better than the simplest ΛCDM model. This implies that either more exotic couplings are needed in the cosmological models with interaction between dark energy and dust matter, or there is no interaction at all. We consider that this result is disadvantageous to the interacting dark energy models studied extensively in the literature.",

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Interacting energy components and observational H (z) data

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