Milestones

Brito, Richard; Cardoso, Vítor; Pani, Paolo

doi:10.1007/978-3-030-46622-0_1

Cited by 3 publications

(3 citation statements)

References 87 publications

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“…The previous literature [10] indicates that the superradiation effect is a process of entropy subtraction. Spherical quantum solution in vacuum state.…”

Section: Similar To the Ads Spacementioning

confidence: 99%

Evidence for loop quantum gravity

Chen

2021

SSRN Journal

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This article points out that when the boundary condition T Tc = z (when z is a complex number) is preset, bosons can produce Bose condensation without an energy layer. Under Bose condensation, incident waves may condense in various black holes in the theory of loop quantum gravity. At that time, potential barriers will be generated near the horizon of various black holes, and we believe that these black holes will also produce super-radiation phenomena (this article uses the natural unit system). We assume that the simple loop quantum gravity theoretical model that can produce superradiation phenomena that does not exist in the traditional theory provides experimental evidence for loop quantum gravity.

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“…The previous literature [10] indicates that the superradiation effect is a process of entropy subtraction. Spherical quantum solution in vacuum state.…”

Section: Similar To the Ads Spacementioning

confidence: 99%

Evidence for loop quantum gravity

Chen

2021

SSRN Journal

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“…Let us consider the Dirac equation [36]for a spin-1 2 massless fermion Ψ, minimally coupled to the same EM potential A µ as in Eq..…”

Section: The Superradiation Effect and Uncertainty Principle IV The Superradiation Effect And Uncertainty Principlementioning

confidence: 99%

“…If we preset the boundary condition as qΦ H = yω, the imaginary part of V will be displayed due to the rotation of the black hole and the charge near the horizon [25][26][27][28][29][30][31][32][33][34][35][36]. It is seen that when the derivatives of V (imaginary part) equal to 0, and the second derivatives of V (imaginary part) is negative the superradiation condition is established.…”

Section: Spherical Quantum Solution In Vacuum Statementioning

confidence: 99%

Superradiation of Dirac particles in KN ds black hole

Chen¹

2021

Preprint

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In this article, we process the approximate wave function of the Dirac particle outside the horizon of the KN ds black hole to obtain V, and then derive V (including real and imaginary parts). We deal with the real and imaginary parts separately. When V (real part or imaginary part) has a maximum value, there may be a potential barrier outside the field of view to have a chance to produce superradiation.

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Superradiant (In)stability, Greybody Radiation, and Quasinormal Modes of Rotating Black Holes in Non-Linear Maxwell f(R) Gravity

Kanzi¹,

Сакалли

Pourhassan

2023

Symmetry

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This work is dedicated to the investigation of the superradiant stability of a rotating black hole derived from the nonlinear Maxwell theory of gravity, f(R). The evaluation of stability and instability in this study will be based on the absence and presence of the magnetic field, respectively, when the magnetic field constant is c4=0 and c4≠0. For the black hole under discussion, analyses of the greybody factors (GFs) and quasi-normal modes (QNMs) are also carried out. To this end, we first consider the Klein–Gordon equation for the scalar waves propagating in the black hole’s geometry. The resulting radial equation is then reduced to a one-dimensional Schrödinger-like wave equation with effective potential energy. The effects of the nonlinear Maxwell f(R) gravity theory parameters (q, c, and c4) on the effective potential, GFs, and QNMs are examined. The results demonstrate that, although the parameters q, c, and c4 all influence the effective potential, they do not affect the GFs and QNMs. All results are presented and summarized using appropriate graphics and tables.

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Milestones

Cited by 3 publications

References 87 publications

Evidence for loop quantum gravity

Evidence for loop quantum gravity

Superradiation of Dirac particles in KN ds black hole

Superradiant (In)stability, Greybody Radiation, and Quasinormal Modes of Rotating Black Holes in Non-Linear Maxwell f(R) Gravity

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