搜索结果: 1-7 共查到“宇宙线物理学 universe”相关记录7条 . 查询时间(0.06 秒)
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...
One-loop quantum gravity repulsion in the early Universe
One-loop quantum gravity the early Universe
2010/12/27
Perturbative quantum gravity is used to compute the lowest order corrections to the classical spatially flat cosmological FLRW solution (for the radiation). The presented approach is analogous to the...
Inflation of Bianchi type-$\Rmnum{7}_0$ Universe with Dirac Field in Einstein-Cartan theory
Universe Dirac Field Einstein-Cartan theory
2010/12/23
We discuss the Bianchi type-$\Rmnum{7}_0$ cosmology with Dirac field in Einstein-Cartan theory. We obtain the equations of Dirac field and gravitational field in Einstein-Cartan theory. We find a Bian...
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...
The influence of inhomogeneities on the large-scale expansion of the universe
the large-scale expansion universe
2010/12/27
The evolution of an inhomogeneous universe composed entirely of matter is followed from an early, nearly uniform state until the time when the inhomogeneities have begun to grow large. The particular...
String Cosmology in LRS Bianchi Type-II Dusty Universe with Time Decaying Vacuum Energy Density $\Lambda$
LRS Bianchi type II models Nambu String Massive string
2010/12/21
A model of a cloud formed by massive strings is used as a source of LRS Bianchi type II with time decaying vacuum energy density . To construct string cosmological models we have used the energy-mome...
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 ...