منابع مشابه
A charged rotating cylindrical shell
We give an example of a spacetime having an infinite thin rotating cylindrical shell constituted by a charged perfect fluid as a source. Then we disscuss the energy conditions and we show that our spacetime contains closed timelike curves. Trajectories of charged test particles both inside and outside the cylinder are also examined. Expression for the angular velocity of a circular motion insid...
متن کامل91 10 v 3 4 F eb 2 00 4 A charged rotating cylindrical shell 1
We give an example of a spacetime having an infinite thin rotating cylindrical shell constituted by a charged perfect fluid as a source. As the interior of the shell the Bonnor–Melvin universe is considered, while its exterior is represented by Datta– Raychaudhuri spacetime. We discuss the energy conditions and we show that our spacetime contains closed timelike curves. Trajectories of charged ...
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We demonstrate a cylindrical rotating triboelectric nanogenerator (TENG) based on sliding electrification for harvesting mechanical energy from rotational motion. The rotating TENG is based on a core-shell structure that is made of distinctly different triboelectric materials with alternative strip structures on the surface. The charge transfer is strengthened with the formation of polymer nano...
متن کاملA Charged Rotating Black Ring
We construct a supergravity solution describing a charged rotating black ring with S2 × S1 horizon in a five dimensional asymptotically flat spacetime. In the neutral limit the solution is the rotating black ring recently found by Emparan and Reall. We determine the exact value of the lower bound on J2/M3, where J is the angular momentum and M the mass; the black ring saturating this bound has ...
متن کاملRotating Cylindrical Systems and Gravitomagnetism
We discuss gravitomagnetism in connection with rotating cylindrical systems. In particular, the gravitomagnetic clock effect is investigated for the exterior vacuum field of an infinite rotating cylinder. The dependence of the clock effect on the Weyl parameters of the stationary Lewis metric is determined. We illustrate our results by means of the van Stockum spacetime. PACS numbers: 04.20.Cv;...
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ژورنال
عنوان ژورنال: General Relativity and Gravitation
سال: 2004
ISSN: 0001-7701
DOI: 10.1023/b:gerg.0000022394.97195.07