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Browsing 08 Faculty of Arts and Sciences by Subject "general relativity"
Now showing items 41-60 of 122
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(The European Physical Journal Plus, Springer, 2015)We consider Einstein-Maxwell-self-interacting scalar field theory described by a potential V(ϕ) in 2+1−dimensions. The self-interaction potential is chosen to be a highly non-linear double-Liouville type. Exact solutions, ...
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(Physics Letters, Elsevier, 2008)By employing the higher dimensional version of the Wu-Yang Ansatz we obtain black hole solutions in the spherically symmetric Einstein-Yang-Mills (EYM) theory. Although these solutions were found recently by other means, ...
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(Journal of Cosmology and Astroparticle Physics, Institute of Physics Publishing (IOP), 2014)In this study we advocate the view that the cosmological constant is of electromagnetic (em) origin, which can be generated from the collision of em shock waves coupled with gravitational shock waves. The wave profiles ...
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(International Journal of Theoretical Physics, Springer, 2016)Quantum gravity has exciting peculiarities on the Planck scale.The effect of generalized uncertainty principle (GUP) to the entangled scalar/fermion particles’ tunneling from a Schwarzschild black hole immersed in an ...
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(International Journal of Theoretical Physics, Springer, 2011)It has been shown recently that information is lost in the Hawking radiation of the linear dilaton black holes in various theories when applying the tunneling formulism without considering quantum gravity effects. In this ...
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(Physical Review D, American Physical Society (APS), 1990)We obtain the exact behavior of the cross-polarized cylindrical Einstein-Maxwell waves that generalizes the well-known Einstein-Rosen waves. In the presence of the second mode of polarization the outgoing waves interact ...
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(Canadian Journal of Physics, NRC Research Press, 2009)Exact solutions of a massive complex scalar field equation in the geometry of a Garfinkle-Horowitz-Strominger (stringy) black hole with magnetic charge is explored. The separated radial and angular parts of the wave equation ...
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(International Journal of Modern Physics D, World Scientific Publishing, 2013)We investigate the existence of Reissner-Nordstr\"om (RN) type black holes in f(R) gravity. Our emphasis is to derive, in the presence of electrostatic source, the necessary conditions which provide such static, spherically ...
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(Astrophysics and Space Science, Springer, 2012)In this study, we explore a particular type Hawking radiation which ends with zero temperature and entropy. The appropriate black holes for this purpose are the linear dilaton black holes. In addition to the black hole ...
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(Physical Review D, American Physical Society (APS), 2014)We reconsider the generalized flare-out conditions in static wormhole throats given by Hochberg and Visser. We show that due to the presence of matter sources on the throat, these conditions are not applicable to the ...
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(International Journal of Modern Physics D, World Scientific Publishing, 2009)Generalization of a known theorem to generate static, spherically symmetric black-hole solutions in higher dimensional Lovelock gravity is presented. Particular limits, such as Gauss-Bonnet (GB) and/or Einstein-Hilbert ...
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(Astrophysics and Space Science, Springer, 2015-08-19)Recent research shows that Hawking radiation (HR) is also possible around the trapping horizon of a wormhole. In this article, we show that the HR of gravitino (spin-3/2 ) particles from the traversable Lorentzian wormholes ...
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(Foundations of Physics, Springer, 2012)Within the context of Born-Infeld (BI) nonlinear electrodynamics (NED) we revisit the non-relativistic, spinless H-atom. The pair potential computed from the Born-Infeld equations is approximated by the Morse type potential ...
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(Communications in Theoretical Physics, Institute of Physics (IOP) Publishing, 2014)In this paper, we consider the relativistic Hamilton-Jacobi (HJ) equation and study the Hawking radiation (HR) of scalar particles from uncharged Grumiller black hole (GBH) which is affordable for testing in astrophysics. ...
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(International Journal of Theoretical Physics, Springer, 2009)Using the Damour-Ruffini-Sannan, the Parikh-Wilczek and the thin film brick-wall models, we investigate the Hawking radiation of uncharged massive particles from 4-dimensional linear dilaton black holes, which are the ...
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(Classical and Quantum Gravity, Institute of Physics (IOP) Publishing: Hybrid Open Access - Green Policies in RoMEO, 2011)We present thin-shell wormhole solutions in Einstein-Yang-Mills-Gauss-Bonnet (EYMGB) theory in higher dimensions d\geq5. Exact black hole solutions are employed for this purpose where the radius of thin-shell lies outside ...
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(Physics Letters B, Elsevier, 2008)By employing the higher (N\TEXTsymbol{>}5) dimensional version of the Wu-Yang Ansatz we obtain magnetically charged new black hole solutions in the Einstein-Yang-Mills-Lovelock (EYML) theory with second (α2) and third ...
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(The European Physical Journal C, Springer, 2015-11-19)Recently we have shown that for 2+1−dimensional thin-shell wormholes a non-circular throat may lead to a physical wormhole in the sense that the energy conditions are satisfied. By the same token, herein we consider angular ...
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(Nuovo Cimento B, Societa Italiana di Fisica, 1987)We study the interacting electromagnetic shock waves with nonconstant profiles in general relativity. It is shown that by modifying the metric functions of the Bell-Szekeres solution, such solutions can be obtained.
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(Lettere Al Nuovo Cimento, Italian Physical Society, 1982)We present a solution of the Einstein-Maxwell field equations describing the collision of superposed electromagnetic shock plane waves
Now showing items 41-60 of 122
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