搜索结果: 61-75 共查到“知识库 宇宙线物理学”相关记录259条 . 查询时间(6.106 秒)
p-wave Holographic Superconductors and five-dimensional gauged Supergravity
p-wave Holographic Superconductors five-dimensional gauged Supergravity
2010/12/23
We explore five-dimensional ${\cal N}=4$ $SU(2)\times U(1)$ and ${\cal N}=8$ SO(6) gauged supergravities as frameworks for condensed matter applications. These theories contain charged (dilatonic) bl...
Cosmic Jets
Cosmic Jets General Relativity
2010/12/27
We discuss time-dependent gravitational fields that "accelerate" free test particles to the speed of light resulting in cosmic double-jet configurations. It turns out that complete gravitational coll...
More on the dilatonic Einstein-Gauss-Bonnet gravity
dilatonic Einstein-Gauss-Bonnet gravity
2010/12/23
Einstein-Gauss-Bonnet gravity coupled to a dynamical dilaton is examined from the viewpoint of Einstein's equivalence principle. We point out that the usual frame change that applies to the action wit...
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...
In this paper, we study the tree amplitudes with gluons coupled to gravitons. We first study the relations among the mixed amplitudes. With BCFW on-shell recursion relation, we will show the color-ord...
State independence for tunneling processes through black hole horizons and Hawking radiation
State independence black hole horizons Hawking radiation
2010/12/27
Tunneling processes through black hole horizons have recently been investigated in the framework of WKB theory discovering interesting interplay with the Hawking radiation. In this paper we instead ad...
Scalar Field in Non-commutative Curved Space time
Scalar Field Non-commutative Curved Space time
2010/12/24
We will study the theory of scalar field in non-commutative curved space time (NCCST) with a percussionist who has been found by Mebaraki. In this paper, the motion equation of the scalar field will ...
Charged fermions tunneling from accelerating and rotating black holes
Charged fermions tunneling accelerating rotating black holes
2010/12/24
We study Hawking radiation of charged fermions from accelerating and rotation black holes with electric and magnetic charges. We calculate the tunneling probabilities of incoming and outgoing fermioni...
Dark Matter as a Relativistic Inertial Effect in Einstein Canonical Gravity?
Dark Matter Relativistic Inertial Effect Einstein Canonical Gravity
2010/12/27
After the study of non-inertial frames in special relativity with emphasis on the problem of clock synchronization (i.e. of how to define 3-space), an overview is given of Einstein canonical gravity ...
Inflationary observables in loop quantum cosmology
Inflationary observables loop quantum cosmology
2010/12/27
The full set of cosmological observables coming from linear scalar and tensor perturbations of loop quantum cosmology is computed in the presence of inverse-volume corrections. Background inflationary...
Ultraviolet Divergences in Cosmological Correlations
Ultraviolet Divergences Cosmological Correlations
2010/12/23
A method is developed for dealing with ultraviolet divergences in calculations of cosmological correlations, which does not depend on dimensional regularization. An extended version of the WKB approx...
Asymptotically flat, stable black hole solutions in Einstein--Yang-Mills--Chern-Simons theory
Asymptotically flat stable black hole solutions
2010/12/23
We construct finite mass, asymptotically flat black hole solutions in d=5 Einstein--Yang-Mills--Chern-Simons theory. Our results indicate the existence of a second order phase transition between Reiss...
Lamb Shift for static atoms outside a Schwarzschild black hole
Lamb Shift static atoms Schwarzschild black hole
2010/12/23
We study, by separately calculating the contributions of vacuum fluctuations and radiation reaction to the atomic energy level shift, the Lamb shift of a static two-level atom interacting with real ma...
Entropy of extremal black holes from entropy of quasiblack holes
Entropy of extremal black holes entropy quasiblack holes
2010/12/27
The entropy of extremal black holes (BHs) is obtained using a continuity argument from extremal quasiblack holes (QBHs). It is shown that there exists a smooth limiting transition in which (i) the sys...
Cosmological Solutions in Five Dimensional Minimal Supergravity
Cosmological Solutions Supergravity
2010/12/23
We construct new non-stationary cosmological solutions to five-dimensional minimal supergravity that don't have any tri-holomorphic U(1) isometries. Our new solutions, in part, contain some of the pre...