非平坦宇宙中相互作用的鬼场暗能量模型  

On Interacting Ghost Dark Energy Model in Non-flat Universe

作　　者：袁通全[1,2] 张德维 YUAN Tongquan;CHONG Tet Vui(School of Mathematics and Physics,Hechi University,Hechi 546300,China;Faculty of Engineering and Quantity Surveying,INTI International University,71800,Nilai Malaysia)

机构地区：[1]河池学院数理学院,广西河池546300 [2]马来西亚英迪国际大学工程学系,马来西亚尼莱71800

出　　处：《西南师范大学学报（自然科学版）》2023年第7期73-79,共7页Journal of Southwest China Normal University(Natural Science Edition)

基　　金：广西高校科学技术研究项目(KY2015LX329).

摘　　要：研究了非平坦宇宙中具有实验数值约束的相互作用鬼场暗能量.根据暗能量与哈勃函数的线性关系,发现暗能量与冷暗物质之间的非引力相互作用导致了能量由冷暗物质向暗能量的转移,得到了非平坦宇宙中相互作用的鬼场暗能量密度及其状态方程和宇宙减速参数的宇宙学演化的解析式.基于对状态方程ω_(D)现值的天文观测,对相互作用因子施加了限制,发现ω_(D0)与相互作用因子呈简单的反线性关系,宇宙减速参数q∈[-0.91,-0.38]均为负值,这与天文观测的宇宙加速膨胀是一致的.An interacting ghost dark energy with experimental constraint in non-flat universe studied in this report.On the basis of the linear relation between dark energy and the Hubble function,it is found that the non-gravitational interaction between dark energy and cold dark matter results in the transfer of cold dark matter to dark energy.The Cosmological evolution of the interacting ghost dark energy density,its equation of state and the deceleration parameters in non-flat universe are obtained analytically.Based on the astronomical observations on the present value of the energy density of stateω_(D0),we imposed restrictions on the interaction factor.It is found that there is a simple reverse linear relationship betweenω_(D0)and the interaction factor and all the deceleration parameters q∈[-0.91,-0.38]are negative,which is well-agreed with the astronomic observation on the accelerated expansion of the universe.

关 键 词：鬼场暗能量 Friedman方程 状态参量 宇宙减速因子 

分 类 号：O412[理学—理论物理]