scholarly journals Backreaction due to quantum tunneling and modification to the black hole evaporation process

2014 ◽  
Vol 90 (4) ◽  
Author(s):  
Sujoy K. Modak
Keyword(s):  
Black Hole ◽  
Quantum Tunneling ◽  
Evaporation Process ◽  
Black Hole Evaporation

scholarly journals INFORMATION STORAGE IN BLACK HOLES

2005 ◽  
Vol 14 (12) ◽  
pp. 2251-2255 ◽  
Author(s):  
M. D. MAIA
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Information Loss ◽  
Information Storage ◽  
Evaporation Process ◽  
Black Hole Evaporation ◽  
Information Loss Paradox

The information loss paradox for Schwarzschild black holes is examined, using the ADS/CFT correspondence extended to the M6(4, 2) bulk. It is found that the only option compatible with the preservation of the quantum unitarity is when a regular remnant region of the black hole survives to the black hole evaporation process, where information can be stored and eventually retrieved.

Hawking Radiation of Charged Particles as Tunneling from Kim Black Hole

2012 ◽  
Vol 538-541 ◽  
pp. 2169-2174
Author(s):  
Qing Quan Jiang
Keyword(s):  
Black Hole ◽  
Hawking Radiation ◽  
Quantum Tunneling ◽  
Radiation Spectrum ◽  
Charged Particles ◽  
Information Loss ◽  
Unitary Theory ◽  
Conservation Of Energy ◽  
Black Hole Evaporation ◽  
Tunneling Method

In this paper, when considering the conservation of energy, electric charge and angular momentum, we develop the Parikh-Wilczek’s quantum tunneling method to study the Hawking radiation of charged particles via tunneling from the event horizon of Kim black hole. The result shows the exact radiation spectrum deviates from the precisely thermal one, but satisfies an underlying unitary theory, which provides a possible solution to the information loss during the black hole evaporation.

scholarly journals AN IMPLICATION OF "GRAVITY AS THE WEAKEST FORCE"

2007 ◽  
Vol 22 (34) ◽  
pp. 2605-2610
Author(s):  
A. J. M. MEDVED
Keyword(s):  
Black Hole ◽  
Specific Heat ◽  
Evaporation Process ◽  
Black Hole Evaporation ◽  
Negative Specific Heat ◽  
Simple Mechanism

The negative specific heat of a radiating black hole is indicative of a cataclysmic endpoint to the evaporation process. In this letter, we suggest a simple mechanism for circumventing such a dramatic outcome. The basis for our argument is a conjecture that was recently proposed by Arkani-Hamed and collaborators. To put it another way, we use their notion of "Gravity as the Weakest Force" as a means of inhibiting the process of black hole evaporation.

scholarly journals UV/IR MIXING AND BLACK HOLE THERMODYNAMICS

2008 ◽  
Vol 17 (01) ◽  
pp. 55-69 ◽  
Author(s):  
KOUROSH NOZARI ◽  
BEHNAZ FAZLPOUR
Keyword(s):  
Field Theory ◽  
Black Hole ◽  
Final Stage ◽  
High Energy ◽  
Energy Sector ◽  
Black Hole Thermodynamics ◽  
Low Energy ◽  
Evaporation Process ◽  
Schwarzschild Black Hole ◽  
Black Hole Evaporation

The goal of this paper is to investigate the final stage of the black-hole-evaporation process in the framework of Lorentz-violating modified dispersion relations (MDRs). As a consequence of MDRs, the high energy sector of the underlying field theory does not decouple from the low energy sector — a phenomenon known as UV/IR mixing. In the absence of exact supersymmetry, we derive an MDR which shows UV/IR mixing by a novel energy dependence. Then we investigate the effects of this type of MDRs on the thermodynamics of a radiating noncommutative Schwarzschild black hole. The final stage of black hole evaporation obtained in this framework is compared with existing pictures.

scholarly journals FROM QUBITS TO BLACK HOLES: ENTROPY, ENTANGLEMENT AND ALL THAT

2005 ◽  
Vol 14 (12) ◽  
pp. 2307-2314 ◽  
Author(s):  
DANIEL R. TERNO
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Loop Quantum Gravity ◽  
Black Hole Entropy ◽  
Logarithmic Correction ◽  
Evaporation Process ◽  
Spin Networks ◽  
Black Hole Evaporation ◽  
Single Qubit

Entropy plays a crucial role in the characterization of information and entanglement, but it is not a scalar quantity and for many systems it is different for different relativistic observers. We discuss two examples: entropy of a single qubit and renormalized entropy as given by a uniformly accelerated observer. Loop quantum gravity predicts the Bekenstein–Hawking term for black hole entropy and the logarithmic correction to it. The latter originates in the entanglement between the pieces of spin networks that describe black hole horizon. Entanglement between gravity and matter may restore the unitarity in the black hole evaporation process. If the collapsing matter is assumed to be initially in a pure state, then entropy of the Hawking radiation is exactly the created entanglement between matter and gravity.

scholarly journals Minimal length and the flow of entropy from black holes

2018 ◽  
Vol 27 (14) ◽  
pp. 1847028 ◽  
Author(s):  
Ana Alonso-Serrano ◽  
Mariusz P. Da̧browski ◽  
Hussain Gohar
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Quantum Gravity ◽  
Uncertainty Principle ◽  
Hawking Radiation ◽  
Generalized Uncertainty Principle ◽  
Minimal Length ◽  
Evaporation Process ◽  
Black Hole Evaporation ◽  
The Impact

The existence of a minimal length, predicted by different theories of quantum gravity, can be phenomenologically described in terms of a generalized uncertainty principle. We consider the impact of this quantum gravity motivated effect onto the information budget of a black hole and the sparsity of Hawking radiation during the black hole evaporation process. We show that the information is not transmitted at the same rate during the final stages of the evaporation, and that the Hawking radiation is not sparse anymore when the black hole approaches the Planck mass.

scholarly journals Probing Hawking radiation through capacity of entanglement

2021 ◽  
Vol 2021 (5) ◽  
Author(s):  
Kohki Kawabata ◽  
Tatsuma Nishioka ◽  
Yoshitaka Okuyama ◽  
Kento Watanabe
Keyword(s):  
Phase Transition ◽  
Black Hole ◽  
Hawking Radiation ◽  
Evaporation Process ◽  
Inverse Temperature ◽  
Black Hole Evaporation ◽  
Brane Model ◽  
The World ◽  
Different Types ◽  
Two Phases

Abstract We consider the capacity of entanglement in models related with the gravitational phase transitions. The capacity is labeled by the replica parameter which plays a similar role to the inverse temperature in thermodynamics. In the end of the world brane model of a radiating black hole the capacity has a peak around the Page time indicating the phase transition between replica wormhole geometries of different types of topology. Similarly, in a moving mirror model describing Hawking radiation the capacity typically shows a discontinuity when the dominant saddle switches between two phases, which can be seen as a formation of island regions. In either case we find the capacity can be an invaluable diagnostic for a black hole evaporation process.

ON THE EFFECT OF ENERGY CONSERVATION ON BLACK HOLE EVAPORATION

2013 ◽  
Vol 22 (07) ◽  
pp. 1350037 ◽  
Author(s):  
R. TORRES ◽  
F. FAYOS ◽  
O. LORENTE-ESPÍN
Keyword(s):  
Black Holes ◽  
Black Hole ◽  
Energy Conservation ◽  
Hawking Radiation ◽  
Scattered Radiation ◽  
Emission Rate ◽  
Information Loss ◽  
Evaporation Process ◽  
Black Hole Evaporation ◽  
Information Loss Paradox

We consider the emission of Hawking radiation by black holes as a consequence of a tunneling process. By requiring energy conservation in the derivation of the emission rate we get a well-known deviation from an exact thermal spectrum. A model that takes into account the implications of energy conservation, as well as the back-scattered radiation, is then constructed in order to describe the evolution of black holes as they evaporate. The evaporation process in this model is compared with the results in the standard "thermal" approximation. This allows us to point out the relevance that energy conservation might have in the last stages of black hole evaporation. We also comment about the possible implications of energy conservation in the information loss paradox.

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