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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...
Age-dependent transient shear banding in soft glasses
Age-dependent transient shear soft glasses
2010/11/24
We study numerically the formation of long-lived transient shear bands during shear startup within two models of soft glasses (a simple fluidity model and an adapted ‘soft glassy rheology’ model). The...
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...
Positronium annihilation in silica aerogel studied by a positron age-momentum correlation technique
positron age-momentum correlation positronium formation positron states silica aerogel
2009/8/14
A high-performance positron age-momentum correlation (AMOC) spectrometer was newly developed. The counting rate is increased up to 200 cps much larger than the value 20~cps reported by other internati...
Is There an Age of the Universe Problem after the Hipparcos Data?
Universe Problem Hipparcos Data
2010/4/15
We have reanalyzed the age of the universe problem under the assumption that the lower limit on the age of the globular clusters is \sim11 Gyr, as predicted by the recent Hipparcos data. We find that ...