搜索结果: 1-15 共查到“物理学 Cosmology”相关记录75条 . 查询时间(0.078 秒)
Frontiers in Theoretical High Energy Physics: From Physics Beyond the Standard Model to Cosmology
brane gravity emergent phenomena gauge/gravity duality highr dimensional gravity inflationary cosmology physics beyond the Standard Model
2014/11/20
This dissertation is focused on three lines of work. In the first part, we consider aspects of holography and gauge/gravity duality in lower and higher dimensions. In particular, we study the duality ...
Artificial Cosmogenesis: A New Kind of Cosmology
arti cial cosmogenesis cosmic evolution computational cosmology digital physics Drake equation
2012/5/29
This paper introduces foundations for a new kind of cosmology. We advocate that computer simulations are needed to address two key cosmological issues. First, the robustness of the emergence of comple...
Knot Universes in Bianchi Type I Cosmology
Knot Universes Bianchi Type I Cosmology General Physics
2012/4/19
We investigate the trefoil and figure-eight knot universes from Bianchi-type I cosmology. In particular, we construct several concrete models describing the knot universes related to the cyclic univer...
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...
Relativistic Cosmology and the Pioneers Anomaly
Relativistic Cosmology the Pioneers Anomaly
2011/9/6
NASA spacecrafts has suffered from three anomalies. The Pioneers spacecrafts were decelerated,and their spin when not disturbed, was declining. On the other hand, fly-bys for gravity assists,appeared ...
Physical vacuum as a system manifesting itself on various scales - from nuclear physics to cosmology
Physical vacuum system various scales nuclear physics cosmology
2011/8/3
Abstract: Suggested here is an attempt to resolve on a phenomenological basis the most keenly discussed enigma of the Universe, namely, the essence of its base medium, "dark energy", which is usually ...
Notes on dark energy interacting with dark matter and unparticle in loop quantum cosmology
Notes dark energy dark matter unparticle loop quantum cosmology
2011/8/3
Abstract: We investigate the behavior of dark energy interacting with dark matter and unparticle in the framework of loop quantum cosmology. In four toy models, we study the interaction between the co...
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...
Fractional Action Cosmology with generalized weight function
Fractional Action generalized weight function
2011/9/2
Motivated by an earlier work on fractional-action cosmology with a periodic weight function, we extend it by choosing a general weight function in the action. In this approach,we obtain a varying grav...
Interacting new agegraphic dark energy with power-law corrected entropy in Horava-Lifshitz cosmology
Corrected entropy-area relation New agegraphic dark energy Hoˇrava-Lifshitz cosmology
2011/9/1
We investigate the new agegraphic dark energy (NADE) model with power-law corrected entropy in the framework of Hoˇrava-Lifshitz cosmology. For a non-flat universe containing the interacting power-law...
We study the evolution of matter density perturbations in Galileon cosmology where the late-time cosmic acceleration can be realized by a field kinetic energy.
We study the evolution of matter density perturbations in Galileon cosmology where the late-time cosmic acceleration can be realized by a field kinetic energy. We obtain full perturbation equations at...
On the one hand, inflation is an extremely convincing scenario: it solves most cosmological paradoxes and generates fluctuations that became the seeds for the growth of structures. It, however, suffer...
Field theory aspects of cosmology and black holes
Field theory aspects of cosmology black holes
2010/12/24
In this thesis we study some aspects of cosmology and black holes using field theoretic techniques. In second chapter, we present Lagrangian formulation for the non-relativistic as well as relativisti...
A commonly adopted relational account of time evolution in generally-covariant systems, and more specifically in quantum cosmology, is argued to be unsatisfactory, insofar as it describes evolution re...