Smatrix for quantum charged massive scalar particles on Schwarzschild black holes

1999 ◽  
Vol 59 (12) ◽  
Author(s):  
N. E. Firsova
Keyword(s):  
Black Holes ◽  
Massive Scalar ◽  
Scalar Particles

S-MATRICES FOR QUANTUM CHARGED MASSIVE SCALAR PARTICLES ON KERR BLACK HOLES

2001 ◽  
Vol 16 (22) ◽  
pp. 1465-1477 ◽  
Author(s):  
N. E. FIRSOVA
Keyword(s):  
Black Holes ◽  
Scalar Field ◽  
Hawking Radiation ◽  
Massive Scalar ◽  
Numerical Computations ◽  
Scattering Problems ◽  
Complex Scalar ◽  
Scalar Particles ◽  
Complex Scalar Field ◽  
Kerr Black Holes

The results obtained recently on the scattering problems connected with the contribution of the topologically inequivalent configurations of the massless complex scalar field on Kerr black holes to the Hawking radiation are extended to include the massive case as well. The corresponding S-matrices are examined and presented in the form convenient for numerical computations.

S-MATRICES FOR QUANTUM CHARGED MASSIVE SCALAR PARTICLES ON SCHWARZSCHILD AND REISSNER–NORDSTRÖM BLACK HOLES

2000 ◽  
Vol 09 (01) ◽  
pp. 79-89 ◽  
Author(s):  
N. E. FIRSOVA
Keyword(s):  
Black Holes ◽  
Hawking Radiation ◽  
Scalar Fields ◽  
Massive Scalar ◽  
Numerical Computations ◽  
Scattering Problems ◽  
Complex Scalar ◽  
Scalar Particles

We study the scattering problems arising when considering the contribution of the topologically inequivalent configurations (TICs) of the massive complex scalar fields on Schwarzschild and Reissner–Nordström black holes to the Hawking radiation. The corresponding S-matrices are explored and presented in the form convenient to numerical computations.

Charged Black Holes with Massive Scalar Field

2009 ◽  
Author(s):  
D. Georgieva ◽  
I. Stefanov ◽  
M. Todorov ◽  
S. Yazadjiev ◽  
Michail D. Todorov ◽  
...  
Keyword(s):  
Black Holes ◽  
Scalar Field ◽  
Massive Scalar ◽  
Massive Scalar Field ◽  
Charged Black Holes

scholarly journals Massive scalar field perturbation on Kerr black holes in dynamical Chern–Simons gravity

2021 ◽  
Vol 81 (5) ◽  
Author(s):  
Shao-Jun Zhang
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Scalar Field ◽  
Massive Scalar ◽  
Coupling Constant ◽  
Field Mass ◽  
Field Perturbation ◽  
Massive Scalar Field ◽  
Kerr Black Holes ◽  
Chern Simons

AbstractWe study massive scalar field perturbation on Kerr black holes in dynamical Chern–Simons gravity by performing a $$(2+1)$$ ( 2 + 1 ) -dimensional simulation. Object pictures of the wave dynamics in time domain are obtained. The tachyonic instability is found to always occur for any nonzero black hole spin and any scalar field mass as long as the coupling constant exceeds a critical value. The presence of the mass term suppresses or even quench the instability. The quantitative dependence of the onset of the tachyonic instability on the coupling constant, the scalar field mass and the black hole spin is given numerically.

scholarly journals Instability of charged massive scalar fields in bound states around Kerr–Sen black holes

2015 ◽  
Vol 24 (14) ◽  
pp. 1550102 ◽  
Author(s):  
Haryanto M. Siahaan
Keyword(s):  
Black Holes ◽  
Bound States ◽  
Gordon Equation ◽  
Scalar Fields ◽  
Bound State ◽  
Imaginary Component ◽  
Scalar Perturbation ◽  
Massive Scalar ◽  
Massive Scalar Field ◽  
Klein Gordon

In this paper, we show the instability of a charged massive scalar field in bound states around Kerr–Sen black holes. By matching the near and far region solutions of the radial part in the corresponding Klein–Gordon equation, one can show that the frequency of bound state scalar fields contains an imaginary component which gives rise to an amplification factor for the fields. Hence, the unstable modes for a charged and massive scalar perturbation in Kerr–Sen background can be shown.

scholarly journals Strong cosmic censorship under quasinormal modes of non-minimally coupled massive scalar field

2019 ◽  
Vol 79 (9) ◽  
Author(s):  
Bogeun Gwak
Keyword(s):  
Black Holes ◽  
Scalar Field ◽  
Decay Rate ◽  
Small Mass ◽  
Cosmic Censorship ◽  
Massive Scalar ◽  
De Sitter ◽  
Massive Scalar Field ◽  
Strong Cosmic Censorship ◽  
Cosmic Censorship Conjecture

Abstract We investigate the strong cosmic censorship conjecture in lukewarm Reissner–Nordström–de Sitter black holes (and Martínez–Troncoso–Zanelli black holes) using the quasinormal resonance of non-minimally coupled massive scalar field. The strong cosmic censorship conjecture is closely related to the stability of the Cauchy horizon governed by the decay rate of the dominant quasinormal mode. Here, dominant modes are obtained in the limits of small and large mass black holes. Then, we connect the modes by using the WKB approximation. In our analysis, the strong cosmic censorship conjecture is valid except in the range of the small-mass limit, in which the dominant mode can be assumed to be that of the de Sitter spacetime. Particularly, the coupling constant and mass of the scalar field determine the decay rate in the small mass range. Therefore, the validity of the strong cosmic censorship conjecture depends on the characteristics of the scalar field.

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