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相关论文: Probing naked singularities in the charged and unc…

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The time-like naked singularities of the electrically and magnetically charged black hole solutions obtained in a model of nonlinear electrodynamics proposed by Kruglov is investigated within the framework of quantum mechanics. In view of…

广义相对论与量子宇宙学 · 物理学 2020-08-04 M. Mangut , O. Gurtug

The formation of naked singularities in $2+1-$ dimensional power - law spacetimes in linear Einstein-Maxwell and Einstein-scalar theories sourced by azimuthally symmetric electric field and a self-interacting real scalar field respectively,…

综合物理 · 物理学 2015-07-08 O. Gurtug , M. Halilsoy , S. Habib Mazharimousavi

Particle probe analysis of the Kehagias - Sfetsos black hole spacetime of Ho% \v{r}ava-Lifshitz gravity is extended to wave probe analysis within the framework of quantum mechanics. The timelike naked singularity that develops when $\omega…

广义相对论与量子宇宙学 · 物理学 2018-05-09 Ozay Gurtug , M. Mangut

The formation of a naked singularity in a model of f(R) gravity having as source a linear electromagnetic field is considered in view of quantum mechanics. Quantum test fields obeying the Klein-Gordon, Dirac and Maxwell equations are used…

广义相对论与量子宇宙学 · 物理学 2012-08-28 T. Tahamtan , O. Gurtug

The spinless Ba\~nados-Teiltelboim-Zanelli (BTZ) spacetime is considered in the quantum theory context. Specially, we study the case of negative mass parameter using quantum test particles obeying the Klein-Gordon and Dirac equations. We…

广义相对论与量子宇宙学 · 物理学 2010-05-12 João Paulo M. Pitelli , Patricio S. Letelier

We investigate the Zipoy-Voorhees metric ($q-$metric) as the simplest static, axially symmetric solution of Einstein's vacuum field equations that possesses as independent parameters the mass and the quadrupole moment. In accordance with…

广义相对论与量子宇宙学 · 物理学 2013-10-22 Hernando Quevedo , Saken Toktarbay , Aimuratov Yerlan

We consider a static, axially symmetric, and asymptotically flat exact solution of the Einstein vacuum equations, known as the gamma metric. This is characterized by two constant parameters $m$ and $\gamma$. We find that the total energy…

广义相对论与量子宇宙学 · 物理学 2007-05-23 K. S. Virbhadra

We review the mathematical framework necessary to understand the physical content of quantum singularities in static spacetimes. We present many examples of classical singular spacetimes and study their singularities by using wave packets…

广义相对论与量子宇宙学 · 物理学 2011-08-01 J. P. M. Pitelli , P. S. Letelier

A naked singularity occurs in the generic collapse of an inhomogeneous dust ball. We study the even-parity mode of gravitational waves from a naked singularity of the Lema\^{\i}tre-Tolman-Bondi spacetime. The wave equations for…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Hideo Iguchi , Tomohiro Harada , Ken-ichi Nakao

Quantum singularities considered in the 3D BTZ spacetime by Pitelli and Letelier (Phys. Rev. D77: 124030, 2008) is extended to charged BTZ and 3D Einstein-Maxwell-dilaton gravity spacetimes. The occurence of naked singularities in the…

广义相对论与量子宇宙学 · 物理学 2014-11-20 O. Unver , O. Gurtug

We study the quantum fate of a naked curvature singularity sourced by a scalar field via several methods and compare the results obtained. The first method relies on relativistic quantum mechanics on a fixed background employing the…

广义相对论与量子宇宙学 · 物理学 2020-05-19 O. Svitek , T. Tahamtan , A. Zampeli

We consider the electromagnetic field occurring in the background of a static, axially symmetric vacuum solution of Einstein's field equations immersed in an external magnetic field. The solution, known as the $\gamma$ metric (or…

广义相对论与量子宇宙学 · 物理学 2019-02-13 Carlos A. Benavides-Gallego , Ahmadjon Abdujabbarov , Daniele Malafarina , Bobomurat Ahmedov , Cosimo Bambi

A definition of quantum singularity for the case of static spacetimes has recently been extended to conformally static spacetimes. Here the theory behind quantum singularities in conformally static spacetimes is reviewed, and then applied…

广义相对论与量子宇宙学 · 物理学 2013-06-05 T. M. Helliwell , D. A. Konkowski

Levi-Civita spacetimes have classical naked singularities. They also have quantum singularities. Quantum singularities in general relativistic spacetimes are determined by the behavior of quantum test particles. A static spacetime is said…

广义相对论与量子宇宙学 · 物理学 2007-05-23 D. A. Konkowski , C. Reese , T. M. Helliwell , C. Wieland

To probe naked spacetime singularities with waves rather than with particles we study the well-posedness of initial value problems for test scalar fields with finite energy so that the natural function space of initial data is the Sobolev…

广义相对论与量子宇宙学 · 物理学 2009-10-31 Akihiro Ishibashi , Akio Hosoya

The classical and quantum properties of a new solution obtained in $2+1$% -dimensional gravity coupled with a real scalar field is analyzed in detail. The considered new solution is a one-parameter generalization of a previously known…

广义相对论与量子宇宙学 · 物理学 2017-04-14 O. Gurtug , S. Habib Mazharimousavi , M. Halilsoy

The purpose of this article is to compute the asymptotic charges of a vacuum solution to the Einstein field equations describing a naked singularity with a non-vanishing quadrupole moment, known in the literature as the Zipoy-Voorhees…

广义相对论与量子宇宙学 · 物理学 2026-05-15 Edgar Gasperin , Mariem Magdy

The formation of a naked singularity in $f(R)$ global monopole spacetime is considered in view of quantum mechanics. Quantum test fields obeying the Klein$-$Gordon, Dirac and Maxwell equations are used to probe the classical timelike naked…

高能物理 - 理论 · 物理学 2014-02-04 O. Gurtug , M. Halilsoy , S. Habib Mazharimousavi

Starting from an integral of the interaction region of colliding Einstein-Maxwell waves and by applying a coordinate transformation, we obtain the charged version of the static Zipoy-Voorhees (ZV) metric valid for all values of the…

广义相对论与量子宇宙学 · 物理学 2022-08-10 Ozay Gurtug , Mustafa Halilsoy , Mert Mangut

We investigate the quantum nature of naked curvature singularities in Einstein-Yang-Mills (EYM) theory using the Horowitz-Marolf (HM) criterion, which assesses quantum singularities via the evolution of quantum scalar fields. Focusing on…

广义相对论与量子宇宙学 · 物理学 2026-04-30 M. Mangut , O. Gurtug , M. Halilsoy
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