搜索结果: 1-14 共查到“天文学 Holographic”相关记录14条 . 查询时间(0.078 秒)
Holographic Dark Energy Characterized by the Total Comoving Horizon and Insights to Cosmological Constant and Coincidence Problem
Holographic Dark Energy the Total Comoving Horizon Insights Cosmological Constant Coincidence Problem
2012/2/21
The observed acceleration of the present universe is shown to be well explained by the holographic dark energy characterized by the total comoving horizon of the universe ($\eta$HDE). It is of interes...
Interacting dark matter and modified holographic Ricci dark energy induce a relaxed Chaplygin gas
interaction modifi ed Ricci’s cutoff dark energy dark matter relaxed Chaplygin gas
2011/10/13
We investigate a model of interacting dark matter and dark energy given by a modified holographic Ricci's cutoff in a spatially flat Friedmann-Robertson-Walker (FRW) space-time. We consider a non line...
Power-law entropy corrected new holographic scalar field models of dark energy
Power-law holographic scalar field models dark energy PLECHDE model
2011/8/11
Abstract: In this work, the PLECHDE model with Granda-Oliveros infrared cutoff is studied and the evolution of dark energy density, deceleration and EoS parameters are calculated. I demonstrate that u...
Holographic Measurement and Improvement of the Green Bank Telescope Surface
cosmology:large-scale structure gravitational lensing methods:analytical
2011/10/8
The topic of this article is weak cosmic shear tomography where the line of sight-weighting is carried out with a set of specifically constructed orthogonal polynomials, dubbed TaRDiS (Tomography with...
Holographic Measurement and Improvement of the Green Bank Telescope Surface
Holographic Measurement Improvement Green Bank Telescope Surface
2011/10/8
We describe the successful design, implementation, and operation of a 12 GHz holography system installed on the Robert C. Byrd Green Bank Telescope (GBT). We have used a geostationary satellite beacon...
By assuming that a dark component (dark energy) in the universe strictly obeys the holographic principle, that is, its entropy is one fourth of the apparent horizon, we find that the existence of the...
Observational signatures of holographic models of inflation
Observational signatures holographic models
2011/1/13
We discuss the phenomenology of recently proposed holographic models of inflation, in which the very early universe is non-geometric and is described by a dual three-dimensional quantum field theory (...
We investigate the non-Gaussianity of primordial cosmological perturbations within our recently proposed holographic description of inflationary universes. We derive a holographic formula that determi...
Towards a Holographic Description of Inflation and Generation of Fluctuations from Thermodynamics
Verlinde conjectured entropic force gravity
2010/3/19
Recently, Verlinde conjectured that gravity may be an entropic force, arising from thermodynamics on the holographic screen. We investigate the implications of the entropic force formalism for inflati...
Modified gravity emerging from thermodynamics and holographic principle
law of entropy thermodynamics holographic principle
2010/3/19
We discuss three different corrections to the area law of entropy. The number of bits $N$ is then modified according to the form of entropy, and the law of gravity is obtained by using the method deve...
Quantum UV/IR Relations and Holographic Dark Energy from Entropic Force
Quantum UV/IR Holographic Dark Energy Entropic Force
2010/3/19
We investigate the implications of the entropic force formalism proposed by Verlinde. We show that an UV/IR relation proposed by Cohen et al, as well as an uncertainty principle proposed by Hogan can ...
We present a holographic description of four-dimensional single-scalar inflationary universes in terms of a three-dimensional quantum field theory. The holographic description correctly reproduces sta...
Holographic Superconductors in Hořava-Lifshitz Gravity
holographic superconductors Hoˇrava-Lifshitz gravity parameter of the detailed balance
2010/3/18
We study $(2+1)$-dimensional holographic superconductors in the Ho\v{r}ava-Lifshitz black hole without the condition of the detailed balance which has rich physics, i.e., changing the parameter of the...
Conserved Gravitational Charges, Locality and the Holographic Weyl Anomaly - a Fresh Viewpoint
Gravitational Charges the Holographic Weyl Anomaly asymptotic isometries
2010/10/18
Since the proposal of the AdS/CFT correspondence, made by Maldacena and Witten, there has been some controversy about the definition of conserved Noether charges associated with asymptotic isometries ...