Oscillating Quintom Model with Time Periodic Varying Deceleration Parameter

作     者：沈明 赵亮 

作者机构：College of Mathematics and Computer Science Fuzhou University Fuzhou 350108 Department of Mathematics Nanjing University of Aeronautics and Astronautics Nanjing 210016 

出 版 物：《Chinese Physics Letters》 (中国物理快报（英文版）)

年 卷 期：2014年第31卷第1期

页      面：18-20页

核心收录：

学科分类：0821[工学-纺织科学与工程] 07[理学] 08[工学] 070401[理学-天体物理] 0805[工学-材料科学与工程（可授工学、理学学位）] 0704[理学-天文学] 082101[工学-纺织工程] 

基　　金：Supported by the National Natural Science Foundation of China under Grant No 11101085  and Fujian Provincial Natural Science Foundation of China under Grant No 2011J05004 

主　　题：ASTROPHYSICS -- Research OSCILLATIONS HUBBLE constant EINSTEIN field equations EXPANDING universe 

摘      要：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 Ftobertson 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.