scholarly journals The wave function of a black hole and the dynamical origin of entropy

1995 ◽  
Vol 51 (4) ◽  
pp. 1741-1763 ◽  
Author(s):  
A. O. Barvinsky ◽  
V. P. Frolov ◽  
A. I. Zelnikov
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Dynamical Origin

scholarly journals Wave function of the quantum black hole

2012 ◽  
Vol 718 (2) ◽  
pp. 653-656 ◽  
Author(s):  
Ram Brustein ◽  
Merav Hadad
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Quantum Black Hole

Dynamical origin of black-hole radiance

1983 ◽  
Vol 28 (12) ◽  
pp. 2929-2945 ◽  
Author(s):  
James W. York
Keyword(s):  
Black Hole ◽  
Dynamical Origin

scholarly journals SUPERRADIANCE FROM A CHARGED DILATON BLACK HOLE

1992 ◽  
Vol 07 (37) ◽  
pp. 3449-3454 ◽  
Author(s):  
KIYOSHI SHIRAISHI
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Large Black Hole ◽  
Charge Loss ◽  
Klein Gordon ◽  
Dilaton Black Hole ◽  
A Charge

We study the behavior of the wave function of charged Klein-Gordon field around a charge dilaton black hole. The rate of spontaneous charge loss is estimated for large black hole case.

scholarly journals Fuzzy Instantons in Landscape and Swampland: Review of the Hartle–Hawking Wave Function and Several Applications

Universe ◽  
2021 ◽  
Vol 7 (10) ◽  
pp. 367
Author(s):  
Dong-han Yeom
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Path Integral ◽  
Initial Conditions ◽  
Black Hole Physics ◽  
Slow Roll ◽  
Potential Shape ◽  
Euclidean Wormholes ◽  
The Universe ◽  
Origin Of The Universe

The Euclidean path integral is well approximated by instantons. If instantons are dynamical, they will necessarily be complexified. Fuzzy instantons can have multiple physical applications. In slow-roll inflation models, fuzzy instantons can explain the probability distribution of the initial conditions of the universe. Although the potential shape does not satisfy the slow-roll conditions due to the swampland criteria, the fuzzy instantons can still explain the origin of the universe. If we extend the Euclidean path integral beyond the Hartle–Hawking no-boundary proposal, it becomes possible to examine fuzzy Euclidean wormholes that have multiple physical applications in cosmology and black hole physics.

scholarly journals The weak cosmic censorship conjecture may be violated

2020 ◽  
Author(s):  
Wen-Xiang Chen
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Boundary Conditions ◽  
Cosmic Censorship ◽  
Traditional Theory ◽  
Schwarzschild Black Hole ◽  
Entropy Reduction ◽  
Set Up ◽  
Coupled Wave ◽  
Cosmic Censorship Conjecture

According to traditional theory, the Schwarzschild black hole does not produce superradiation. If the boundary conditions are set up in advance, this possibility will be combined with the boson-coupled wave function in the Schwarzschild black hole, where the incident boson will have a mirrored mass, so even the Schwarzschild black hole can generate superradiation phenomena.Recently, an article of mine obtained interesting results about the Schwarzschild black hole can generate superradiation phenomena. The result contains some conclusions that violate the "no-hair theorem". We know that the phenomenon of black hole superradiation is a process of entropy reduction I found that the weak cosmic censorship conjecture may be violated.

FALLING INTO A BLACK HOLE

2008 ◽  
Vol 17 (03n04) ◽  
pp. 583-589 ◽  
Author(s):  
SAMIR D. MATHUR
Keyword(s):  
Field Theory ◽  
Black Hole ◽  
Wave Function ◽  
String Theory ◽  
Quantum Gravity ◽  
Definition Of

String theory tells us that quantum gravity has a dual description as a field theory (without gravity). We use the field theory dual to ask what happens to an object as it falls into the simplest black hole: the two-charge extremal hole. In the field theory description the wave function of a particle is spread over a large number of "loops," and the particle has a well-defined position in space only if it has the same "position" on each loop. For the infalling particle we find one definition of "same position" on each loop, but there is a different definition for outgoing particles and no canonical definition in general in the horizon region. Thus the meaning of "position" becomes ill-defined inside the horizon.

scholarly journals SCATTERING OF SCALAR FIELD BY AN EXTENDED BLACK HOLE IN F(R) GRAVITY

2014 ◽  
Vol 29 (02) ◽  
pp. 1450005 ◽  
Author(s):  
SANEESH SEBASTIAN ◽  
V. C. KURIAKOSE
Keyword(s):  
Black Hole ◽  
Wave Function ◽  
Scalar Field ◽  
Cross Section ◽  
Absorption Cross Section ◽  
Hawking Temperature ◽  
Wkb Method ◽  
Absorption Cross ◽  
Tunneling Method

In this work we have studied the scattering of scalar field around an extended black hole in F(R) gravity using WKB method. We have obtained the wave function in different regions such as near the horizon region, away from horizon and far away from horizon and the absorption cross-section are calculated. We find that the absorption cross-section is inversely proportional to the cube of Hawking temperature. We have also evaluated the Hawking temperature of the black hole via tunneling method.

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