TUNNELING OF CHARGED FERMIONS FROM THE GARFINKLE–HORNE DILATON BLACK HOLE

2008 ◽  
Vol 17 (11) ◽  
pp. 2079-2087 ◽  
Author(s):  
XIAO-XIONG ZENG ◽  
XI-ZHUN HAO ◽  
SHU-ZHENG YANG

Motivated by the recent work of Kerner and Mann, we study Hawking tunneling radiation of fermions from the Garfinkle–Horne dilaton black hole on the brane. Because the electromagnetic field would couple with the gravity and matter fields, we introduce the Dirac equation of charged particles. We further discuss the correction spectrum of the radiant spin 1/2 particles by considering energy conservation and charge conservation. Our result shows that the tunneling rate of fermions also agrees with the underlying unitary theory as the unfixed background space–time is taken into account.

2007 ◽  
Vol 16 (08) ◽  
pp. 1295-1301 ◽  
Author(s):  
DEYOU CHEN ◽  
SHUZHENG YANG

Taking the self-gravitational interaction and unfixed background space–time into account, we discuss the tunneling radiation of the Dilaton–Maxwell black hole by the Hamilton–Jacobi method. The result shows that the tunneling rate is related not only to the change of Bekenstein–Hawking entropy, but also to a subtle integral about the black hole mass, which does not satisfy the unitary theory and is different from Parikh and Wilczek's result. This implies that information loss in black hole evaporation is possible.


2007 ◽  
Vol 16 (05) ◽  
pp. 847-855 ◽  
Author(s):  
YAPENG HU ◽  
JINGYI ZHANG ◽  
ZHENG ZHAO

Originally, Parikh and Wilczek's work is only suitable for the massless particles' tunneling. But their work has been further extended to the cases of massive uncharged and charged particles' tunneling recently. In this paper, as a particular black hole solution, we apply this extended method to reconsider the tunneling effect of the Horowitz–Strominger Dilaton black hole. We investigate the behavior of both massive uncharged and charged particles, and respectively calculate the emission rate at the event horizon. Our result shows that their emission rates are also consistent with the unitary theory. Moreover, comparing with the case of massless particles' tunneling, we find that this conclusion is independent of the kind of particles. And it is probably caused by the underlying relationship between this method and the laws of black hole thermodynamics.


2016 ◽  
Vol 94 (12) ◽  
pp. 1369-1371 ◽  
Author(s):  
Gu-Qiang Li

The tunneling radiation of particles from Born–Infeld anti-de Sitter black holes is studied by using the Parikh–Wilczek method and the emission rate of a particle is calculated. It is shown that the emission rate is related to the change of the Bekenstein–Hawking entropy of the black hole and the emission spectrum deviates from the purely thermal spectrum but is consistent with an underlying unitary theory.


Author(s):  
Guo-Ping Li ◽  
Zhong-Wen Feng ◽  
Hui-Ling Li ◽  
Xiao-Tao Zu

2019 ◽  
Vol 59 (1) ◽  
Author(s):  
Gu-Qiang Li ◽  
Yan-Yi Ou ◽  
Ze-Tao Lin

The Hawking radiation of charged particles from black holes in the Hořava–Lifshitz (HL) gravity is investigated by using the Parikh–Wilczek (PW) method, and the emission rate is calculated. The emission spectrum is not purely thermal and is consistent with an underlying unitary theory. Some other characteristics exist for a HL gravity black hole. Assuming the conventional tunnelling rate associated with the change of entropy, the entropy of the HL gravity black hole is obtained. The entropy is not proportional to the horizon area because a logarithmic term exists. However, it complies with the first law of thermodynamics and is in accord with earlier results.


2012 ◽  
Vol 538-541 ◽  
pp. 2169-2174
Author(s):  
Qing Quan Jiang

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.


2010 ◽  
Vol 25 (30) ◽  
pp. 5543-5555 ◽  
Author(s):  
S. HAMID MEHDIPOUR

We apply the tunneling process of charged massive particles through the quantum horizon of a Reissner–Nordström black hole in a new noncommutative gravity scenario. In this model, the tunneling amplitude on account of noncommutativity influences in the context of coordinate coherent states is modified. Our calculation points out that the emission rate satisfies the first law of black hole thermodynamics and is consistent with an underlying unitary theory.


2013 ◽  
Vol 647 ◽  
pp. 918-922
Author(s):  
Hui Ling Li ◽  
Cheng Cheng ◽  
Yan Ge Wu

Extending the Parikh’s method of quantum tunneling radiation, Hawking radiation via tunneling from the cosmological horizon of NUT-Kerr-Newman de Sitter black hole is deeply studied. The result shows that the tunneling rate on the cosmological horizon is related to the change of Bekenstein-Hawking entropy and the real spectrum is not strictly thermal at all, but is consistent with an underlying unitary theory.


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