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Interacting dark energy: a generalized scenario and observational constraints

  • Zhengxiang LiEmail author
Regular Article - Theoretical Physics

Abstract

A generalized scenario, which is used to characterize the attenuated dilution of cold dark matter deviating from the standard case, is proposed for the interaction of cosmological dark sectors. This generalized framework cannot only fully recover the three frequently studied phenomenological parameterizations in the limit of the characteristic parameter α→−1,0 and +1, but also admits a much wider range of cosmological solutions for other values of α. Moreover, some cosmological consequences are examined by placing constraints on this generalized interacting model with current observational data. We find that, for α in the extended range of [−1.0, 1.0], the case in which the energy flow transfers from dark matter to dark energy is slightly favored by observations.

Keywords

Dark Matter Dark Energy Dark Energy Model Cold Dark Matter Generalize Scenario 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.

Notes

Acknowledgements

This work was supported by China Postdoc Grant No. 2013M530541, the Ministry of Science and Technology National Basic Science Program (Project 973) under Grant No. 2012CB821804, the Fundamental Research Funds for the Central Universities and Scientific Research Foundation of Beijing Normal University.

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Copyright information

© Springer-Verlag Berlin Heidelberg and Società Italiana di Fisica 2013

Authors and Affiliations

  1. 1.Department of AstronomyBeijing Normal UniversityBeijingChina

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