منابع مشابه
Gravitational-wave emission from rotating gravitational collapse in three dimensions.
We present the first three-dimensional (3D) calculations of the gravitational-wave emission in the collapse of uniformly rotating stars to black holes. The initial models are polytropes which are dynamically unstable and near the mass-shedding limit. The waveforms have been extracted using a gauge-invariant approach and reflect the properties of both the initial stellar models and of newly prod...
متن کاملRadiation collapse and gravitational waves in three dimensions.
Two non-static solutions for three dimensional gravity coupled to matter fields are given. One describes the collapse of radiation that results in a black hole. This is the three dimensional analog of the Vaidya metric, and is used to construct a model for mass inflation. The other describes plane gravitational waves for coupling to a massless scalar field. PACS numbers: 4.20, 4.40, 97.60.L Typ...
متن کاملStatics and dynamics of spin and electric dipoles in three, four, and other dimensions.
Properly, spin is an antisymmetric tensor, and therefore in n-dimensional spaces where polar vectors have n components, spin has n (n —1)/2 components. Moreover, although a rotation can make an arbitrary polar vector have only one noniero component, the same is not true for spin (and magnetic field). In particular, for n=4 an experimentalist can generate two independent field components (e.g., ...
متن کاملTesting statics-dynamics equivalence at the spin-glass transition in three dimensions
The statics-dynamics correspondence in spin glasses relate nonequilibrium results on large samples (the experimental realm) with equilibrium quantities computed on small systems (the typical arena for theoretical computations). Here we employ statics-dynamics equivalence to study the Ising spin-glass critical behavior in three dimensions. By means of Monte Carlo simulation, we follow the growth...
متن کاملGravitational instability in higher dimensions
We explore a classical instability of spacetimes of dimension D > 4. Firstly, we consider static solutions: generalised black holes and brane world metrics. The dangerous mode is a tensor mode on an Einstein base manifold of dimension D−2. A criterion for instability is found for the generalised Schwarzschild, AdSSchwarzschild and topological black hole spacetimes in terms of the Lichnerowicz s...
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ژورنال
عنوان ژورنال: Nature
سال: 1937
ISSN: 0028-0836,1476-4687
DOI: 10.1038/140729a0