Oscillating Quintom Model with Time Periodic Varying Deceleration Parameter
SHEN Ming1**, ZHAO Liang2
1College of Mathematics and Computer Science, Fuzhou University, Fuzhou 350108 2Department of Mathematics, Nanjing University of Aeronautics and Astronautics, Nanjing 210016
Abstract：We propose a new law for the deceleration parameter that varies periodically with time. According to the law, we give a model of the oscillating universe with quintom matter in the framework of a 4-dimensional Friedmann–Robertson–Walker background. We find that, in the model, the Hubble parameter oscillates and keeps positive. The universe undergoes decelerating expansion and accelerating expansion alternately without singularity.
(Particle-theory and field-theory models of the early Universe (including cosmic pancakes, cosmic strings, chaotic phenomena, inflationary universe, etc.))
引用本文:
. [J]. 中国物理快报, 2014, 31(1): 10401-010401.
SHEN Ming, ZHAO Liang. Oscillating Quintom Model with Time Periodic Varying Deceleration Parameter. Chin. Phys. Lett., 2014, 31(1): 10401-010401.
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2014, Vol. 31 
