Big Bounce Singularity of a Simple Five-Dimensional Cosmological Model

Chin. Phys. Lett.

2003, Vol. 20

Issue (7): 995-998 DOI:

Original Articles

Big Bounce Singularity of a Simple Five-Dimensional Cosmological Model

XU Li-Xin;LIU Hong-Ya;WANG Bei-Li

Department of Physics, Dalian University of Technology, Dalian 116024

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XU Li-Xin, LIU Hong-Ya, WANG Bei-Li 2003 Chin. Phys. Lett. 20 995-998

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Abstract The big bounce singularity of a simple five-dimensional cosmological model is studied. Contrary to the standard big bang space-time singularity, this big bounce singularity is found to be an event horizon at which the scale factor and the mass density of the universe are finite, while the pressure undergoes a sudden transition from negative infinity to positive infinity. By using coordinate transformation it is also shown that before the bounce the universe contracts deflationary. According to the proper-time, the universe may have existed for an infinitely long time.

Keywords: 04.50.+h 98.80.Bp

Published: 01 July 2003

PACS:	04.50.+h
	98.80.Bp	(Origin and formation of the Universe)

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https://cpl.iphy.ac.cn/ OR https://cpl.iphy.ac.cn/Y2003/V20/I7/0995

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	XU Li-Xin
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