搜索结果: 1-15 共查到“高能物理学 Dark energy”相关记录15条 . 查询时间(0.064 秒)
Variable $G$ Correction for Dark Energy Model in Higher Dimensional Cosmology
Variable $G$ Correction Dark Energy Model Higher Dimensional Cosmology General Physics
2012/4/19
In this work, we have considered $N (=4+d)$-dimensional Einstein field equations in which 4-dimensional space-time which is described by a FRW metric and that of the extra $d$-dimensions by an Euclide...
Fractional Action Cosmology: Some Dark Energy Models in Emergent, Logamediate and Intermediate Scenarios of the Universe
Fractional Action Cosmology Dark Energy Model Emergent Logamediate Intermediate Scenarios of the Universe
2011/8/2
Abstract: In the framework of Fractional Action Cosmology, we have reconstructed the scalar potentials and scalar fields, namely, quintessence, phantom, tachyon, k-essence, DBI-essence, Hessence, dila...
Observational Constraints on Interacting Model of New Agegraphic Dark Energy and Alleviation of Cosmic Age Problem
Observational Constraints on Interacting Model Agegraphic Dark Energy
2010/12/27
Many dark energy models fail to pass the cosmic age test via the old quasar APM 08279+5255 at redshift $z=3.91$, even the $\Lambda$CDM model and the holographic dark energy model are not exception. I...
A dark energy model alternative to generalized Chaplygin gas
energy model generalized Chaplygin gas
2010/12/27
We propose a new fluid model of dark energy for $-1 \leq \omega_{\text{eff}} \leq 0$ as an alternative to the generalized Chaplygin gas models. The energy density of dark energy fluid is severely supp...
Notes on Ghost Dark Energy
Notes Ghost Dark Energy
2010/12/27
We study a phenomenological dark energy model which is rooted in the Veneziano ghost of QCD. In this dark energy model, the energy density of dark energy is proportional to Hubble parameter and the pr...
Scalar field reconstruction of power-law entropy-corrected holographic dark energy
Scalar field reconstruction power-law entropy-corrected holographic dark energy
2010/12/24
A so called "power-law entropy-corrected holographic dark energy" (PLECHDE) was recently proposed to explain the dark energy dominated universe. This model is based on the power-law corrections to bl...
Cosmological observations on the largest scales exhibit a solid record of unexpected anomalies and alignments, apparently pointing towards a large scale violation of statistical isotropy. These inclu...
Supersymmetric Cosmological FRW Model and Dark Energy
Supersymmetric Cosmological FRW Model Dark Energy
2010/12/20
In this work we consider a flat cosmological model with a set of fluids in the framework of supersymmetric cosmology. The obtained supersymmetric algebra allowed us to take quantum solutions. It is sh...
Observational Constraints on Interacting Model of New Agegraphic Dark Energy and Alleviation of Cosmic Age Problem
Interacting Model New Agegraphic Dark Energy Alleviation of Cosmic Age Problem
2010/12/21
Many dark energy models fail to pass the cosmic age test via the old quasar APM 08279+5255 at
redshift z = 3.91, even the CDM model and the holographic dark energy model are not exception.In this pa...
Cosmological evolution and statefinder diagnostic for new holographic dark energy model in non flat universe
Dark energy；New holographic model；Statefinder diagnostic；Cosmological evolution
2010/12/20
In this paper, the holographic dark energy model with new infrared cut-off proposed by Granda
and Oliveros has been investigated in spatially non flat universe.
Notes on Ghost Dark Energy
Notes Ghost Dark Energy
2010/12/21
We study a phenomenological dark energy model which is rooted in the Veneziano ghost of QCD. In this dark energy model, the energy density of dark energy is proportional to Hubble parameter and the pr...
Dark Energy And Life's Ultimate Future
Cosmological Constant Quintessence Far Future Intelligence
2011/9/8
The discovery of the present accelerated expansion of space changed everything regarding cosmology and life's ultimate prospects. Both the optimistic scenarios of an ever (but decelerated) expanding u...
The physical origin of holographic dark energy (HDE) is reexamined. It is shown that the well-accepted explanation in terms of the UV/IR connection argument of Cohen et al is wrong. Moreover, Thomas's...
Generalized Brans-Dicke cosmology in the presence of matter and dark energy
Brans-Dicke cosmology time-dependent expansion inflation dark energy
2010/3/17
We study the Generalized Brans-Dicke cosmology in the presence of matter and dark energy. Of particular interest for a constant Brans-Dicke parameter, the de Sitter space has also been investigated.
Thermodynamics properties of the dark energy in loop quantum cosmology
Thermodynamics properties dark energy loop quantum cosmo
2010/3/17
Considering an arbitrary, varying equation of state parameter, the thermodynamic properties of the dark energy fluid in semiclassical loop quantum cosmology scenario, which we consider the inverse vol...