Browsing Makale Koleksiyonu by Category "Diğer"
Now showing items 114 of 14

2+1dimensional electrically charged black holes in Einstein  Power Maxwell Theory
(APS Physics, 2010)A large family of new black hole solutions in 2 + 1 dimensional EinsteinpowerMaxwell gravity with prescribed physical properties is derived. We show with particular examples that according to the power parameter ... 
Colliding wave solutions in a symmetric nonmetric theory
(Springerlink, 2008)A method is given to generate the nonlinear interaction (collision) of linearly polarized gravity coupled torsion waves in a nonmetric theory. Explicit examples are given in which strong mutual focussing of gravitational ... 
Failure of a stability conjecture in general relativity
(Springerlink, 2002)By employing an exact backreaction geometry, HelliwellKonkowski stability conjecture is shown to fail. This happens when a test null dust is inserted to the interaction region of crosspolarized BellSzekeres spacetime. 
Horizon instability in the cross polarized Bell  Szekeres spacetime
(Cornell University, 2000)The quasiregular singularities (horizons) that form in the collision of cross polarized electromagnetic waves are, as in the linear polarized case, unstable. The validity of the HelliwellKonkowski stability conjecture ... 
A new Einsteinnonlinear electrodynamics solution in 2+1dimensions
(Springerlink, 2013)We introduce a class of solutions in 2 + 1−dimensional EinsteinPowerMaxwell theory for circularly symmetric electric field. The electromagnetic field is considered with an angular component given by Fµν = E0δ t µδ θ ν ... 
Null singularities in colliding waves
(Cornell University, 2001)Colliding Einstein  Maxwell  Scalar fields need not necessarily doomed to become in a spacelike singularity. Examples are given in which null singularities emerge as intermediate stages between a spacelike singularity ... 
Null singularity formation by scalar fields in colliding waves and black holes
(Cornell University, 2002)It was believed that when gravitational, electromagnetic and scalar waves interact, a spacelike curvature singularity or Cauchy horizon develops because of mutual focusing. We show with an exact solution that the collision ... 
Quantum probe of Hoˇravalifshitz gravity
(Cornell University, 2018)Particle probe analysis of the Kehagias  Sfetsos black hole spacetime of HoˇravaLifshitz gravity is extended to wave probe analysis within the framework of quantum mechanics. The timelike naked singularity that develops ... 
Quantum probes of timelike naked singularities in the weak eld regime of f(R) global monopole spacetime
(Springerlink, 2014)The formation of a naked singularity in f(R) global monopole spacetime is considered in view of quantum mechanics. Quantum test elds obeying the KleinGordon, Dirac and Maxwell equations are used to probe the classical ... 
Quantum singularities in (2+1) dimensional matter coupled black hole spacetimes
(APS Physics, 2012)Quantum singularities considered in the 3 D BTZ spacetime by Pitelli and Letelier (Phys. Rev. D77: 124030, 2008) is extended to charged BTZ and 3D EinsteinMaxwelldilaton gravity spacetimes. The occurence of naked ... 
Quantum singularities in a model of f(R) gravity
(Springerlink, 2012)The formation of a naked singularity in a model of f(R) gravity having as source a linear elec tromagnetic field is considered in view of quantum mechanics. Quantum test fields obeying the Klein−Gordon, Dirac and Maxwell ... 
Restricted class of colliding EinsteinYangMills plane waves
(WorldScientific, 2009)By gauging an Abelian electromagnetic (em) solution through a nonAbelian transformation and in accordance with a theorem proved long time ago, we construct a simple class of colliding EinsteinYangMills (EYM) plane ... 
Rindler modified schwarzschild geodesics
(Springerlink, 2013)The mysterious attractive constant radial force acted in the past on Pioneer spacecrafts  the socalled Pioneer anomaly  is considered within the context of Rindler acceleration. As an idea this is tempting since it ... 
Wavy way to the Kerr metric and the quantum nature of its ring singularity
(Cornell University, 2016)From inherent nonlinearity two gravitational waves, unless they are unidirectional, fail to satisfy a superposition law. They collide to develop a new spacetime carrying the imprints of the incoming waves. Same behaviour ...