搜索结果: 46-60 共查到“知识库 理学 General relativity”相关记录63条 . 查询时间(0.178 秒)
TransverseDiff gravity is to scalar-tensor as unimodular gravity is to General Relativity
TransverseDiff gravity scalar-tensor unimodular gravity General Relativity
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2010/12/15
Transverse Diffeomorphism (TDiff) theories are well-motivated theories of gravity from the quantum perspective, which are based upon a gauge symmetry principle. The main contribution of this work is t...
Probing modifications of General Relativity using current cosmological observations
General Relativity integrated Sachs-Wolfe weak lensing
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2010/3/9
We test General Relativity (GR) using current cosmological data: the cosmic microwave background (CMB) from WMAP5 (Komatsu et al. 2009), the integrated Sachs-Wolfe (ISW) effect from the cross-correla...
Mass and Angular Momentum in General Relativity
Angular Momentum General Relativity
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2010/3/18
We present an introduction to mass and angular momentum in General Relativity. After briefly reviewing energy-momentum for matter fields, first in the flat Minkowski case (Special Relativity) and then...
The Robertson-Walker Metric in a Pseudo-Complex General Relativity
Walker metric energy-momentum
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2010/3/18
We investigate the consequences of the pseudo-complex General Relativity within a pseudo-complexified Roberston-Walker metric. A contribution to the energy-momentum tensor arises, which corresponds to...
Spacetime Brout-Englert-Higgs effect in General Relativity interacting with p-brane matter
Brout-Englert-Higgs p-brane matter
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2010/3/19
We review the manifestation of the Brout-Englert-Higgs effect in general relativity interacting with point-like and extended objects (p-branes including string for p=1 and membrane for p=2), which man...
Expanding Universe and its manifestations beyond the General Relativity
Expanding Universe General Relativity
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2010/3/18
It has been demonstrated that a modern stage of the Universe expansion may be described in accordance with the observations within the scope of the space-time conformal geometry. The clock synchroniza...
On possible a-priori "imprinting" of General Relativity itself on the performed Lense-Thirring tests with LAGEOS satellites
Experimental studies of gravity Satellite orbits Harmonics of the gravity potential field
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2010/3/18
The impact of possible a-priori "imprinting" effects of general relativity itself on recent attempts to measure the Lense-Thirring precessions with the LAGEOS satellites orbiting the Earth and the ter...
Coarse-graining of inhomogeneous dust flow in General Relativity via isometric embeddings
inhomogeneous dust flow isometric embeddings
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2010/3/17
We present a new approach to coarse-graining of variables describing dust flow in GR. It is based on assigning quasi-local shear, twist and expansion to 2-dimensional surfaces with the help of isometr...
Tilted Bianchi Type I dust fluid magnetized cosmological model in general relativity
Bianchi type I dust fluid tilted models
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2010/4/8
Tilted Bianchi Type I perfect fluid cosmological model in presence of magnetic field is investigated. To get a determinate solution, we assume p = 0 and A = BC, where A, B and C are metric potentials....
On the breakdown criterion in General Relativity
General Relativity breakdown criterion
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2014/4/3
In collaboration with I. Rodnianski we give a geometric criterion for the breakdown of an Einstein vacuum space-time foliated by a constant mean curvature, or maximal, foliation. More precisely we sho...
Solitonic Information Transmission in General Relativity
Newman-Penrose tetrad KdV wave solitonic information transformation
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2007/8/15
2007Vol.47No.4pp.663-664DOI:
Solitonic Information Transmission in General Relativity
SHANG Yu,1,3 WANG Gui-Dong,2 WU Xiao-Ning,1 WANG Shi-Kun,1 and LAU Yun-Kau1
1 Insti...
Remarks on the Total Angular Momentum in General Relativity
total angular momentum general relativity
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2007/8/15
2003Vol.39No.5pp.521-524DOI:
Remarks on the Total Angular Momentum in General Relativity
ZHANG Xiao
Institute of Mathematics, Academy of Mathematics and
System Sciences...
Quantum Gauge General Relativity
general relativity gauge field quantum gravity renormalization
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2007/8/15
2004Vol.42No.4pp.543-552DOI:
Quantum Gauge General Relativity
WU Ning
Institute of High Energy Physics, P.O. Box 918-1, Beijing 100039, China
(Received:
...
A Possible Modification of Einstein's Theory of General Relativity
general relativity metric theory of gravitation vector graviton field
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2007/8/15
2004Vol.41No.3pp.377-380DOI:
A Possible Modification of Einstein's Theory of General Relativity
QIAN Shang-Wu
Physics Department, Peking University, Beijing 100871, Chin...
General Relativity Histories Theory
a spacelike foliation a spacetime metric General Relativity Histories Theory
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2010/10/13
The canonical description is based on the prior choice of a spacelike foliation, hence making a reference to a spacetime metric. However, the metric is expected to be a dynamical, fluctuating quantity...