Review on Dark Energy ModelsReview on Dark Energy ModelsBased on quantum mechanics and general relativity, Karolyhazy proposed a generalization to the well-known Heisenberg uncertainty relation in which the energy density of quantum fluctuations of space-time plays a crucial role. Later on, various ...
"...dark energy: A smooth, persistent component of invisible energy, thought to make up about 70 percent of the current energy density of the universe. Dark energy is known to be smooth because it doesn
模型黑暗精力的问题简短在理论,观察的方面被考察.在理论方面,黑暗精力情形被分类进对称,人类的原则,调节机制,修改严肃,量宇宙论, holographic 原则,背反应和现象学的类型.在观察方面,我们介绍宇宙的探针,联系的精力投射的黑暗,理论模型上的观察限制和模型独立人士重建.Miao LiXiao-Dong LiShuang WangYi Wang物理学...
内容提示: Review ArticleScalar Dark Energy Models and Scalar-TensorGravity: Theoretical Explanations for theAccelerated Expansion of Present UniversePeixiang Ji 1,2 and Lijing Shao 2,31Department of Astronomy, School of Physics, Peking University, Beijing 100871,China2Kavli Institute for Astronomy and ...
(Lambda Cold Dark Matter) model. Here we present measurement of the Weyl potential at four redshifts bins using data from the first three years of observations of the Dark Energy Survey. We find that the measured Weyl potential is 2 σ, respectively 2.8 σ, below theΛCDM predictions ...
double-transition modelWe study characters of recent type Ia supernova (SNIa) data using evolving dark energy models with changing equation of state parameter w. We consider sudden-jump approximation of w for some chosen redshift spans with double transitions, and constrain these models based on ...
StarModels DarkEnergy Coordenacaode Astronomia Astrofsica,Observatorio Nacional, Rua General Jose Cristino 77, Sao Cristovao, CEP 20921-400, Rio de Janeiro, RJ, Brazil daSilva Departamentode Fsica Teorica, Universidade do Estado do Rio de Janeiro, Rua Sao Francisco Xavier 524, Maracana, CEP 20...
Wei H,Zhang S N.Age Problem in the Holographic Dark Energy Model. Physical Review D Particles Fields Gravitation and Cosmology . 2007H. Wei and S.N. Zhang, Age problem in the holographic dark energy model, Phys. Rev. D 76 (2007) 063003 [arXiv:0707.2129]....
This thesis is a contribution to the Energy Democracy literature, describing a community-based electricity model that includes two components: property and people. I argue to include an in-depth study of John Locke's theories on property, in addition to Elinor Ostrom's Institutional Analysis and ...
We investigate the new agegraphic dark energy models with generalized uncertainty principle (GUP). It turns out that although the GUP affects the early universe, it does not change the current and future dark energy-dominated universe significantly. Furthermore, this model could describe the matter...