A Dark Energy Model with Higher Derivative and Cosmological Evolution

doi:10.1088/0256-307X/26/10/109803

Chin. Phys. Lett.

2009, Vol. 26

Issue (10): 109803 DOI: 10.1088/0256-307X/26/10/109803

Original Articles

A Dark Energy Model with Higher Derivative and Cosmological Evolution

ZHANG Xiao-Fei¹, LIU Hui-Hui²

¹Department of Physics and Electronic Science, Binzhou College, Shandong 256600²Department of Physics, Henan University of Science and Technology, Luoyang 471003

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ZHANG Xiao-Fei, LIU Hui-Hui 2009 Chin. Phys. Lett. 26 109803

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Abstract We construct dark energy models which have high derivative terms. In the framework of a single scalar field model with a higher derivative, the equation of state (EOS) w might have some special character in the evolvement, which states that the universe will evolve in some interesting ways. We study the different kinds of dark energy models, and classify them into several genera by their character in the evolvement.

Keywords: 98.80.-k 95.36.+x

Received: 24 January 2009 Published: 27 September 2009

PACS:	98.80.-k	(Cosmology)
	95.36.+x	(Dark energy)

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https://cpl.iphy.ac.cn/10.1088/0256-307X/26/10/109803 OR https://cpl.iphy.ac.cn/Y2009/V26/I10/109803

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