This paper investigated the massive particle radiation from Gibbons-Maeda black hole by using a semi-classical method. The calculations showed that, if the self-gravitation of the radiated particle is taken into accou...This paper investigated the massive particle radiation from Gibbons-Maeda black hole by using a semi-classical method. The calculations showed that, if the self-gravitation of the radiated particle is taken into account, the radiation spectrum deviates from exact black body spectrum and the rate of tunneling equals precisely the exponent of the difference of the black hole entropies before and after emission. The conclusion supports the viewpoint of information conservation.展开更多
The exact metric of a Schwarzschild black hole in the true radiation gauge was recently reported. In this work, we base on this gravity and calculate the gravitational deflection of relativistic massive particles up t...The exact metric of a Schwarzschild black hole in the true radiation gauge was recently reported. In this work, we base on this gravity and calculate the gravitational deflection of relativistic massive particles up to the fourth post-Minkowskian order. It is found that the result is consistent with the previous formulations for both the case of dropping the fourth-order contribution and the case of light deflection. Our result might be helpful for future high-accuracy observations.展开更多
Superstring theory is the most hopeful candidate of the grand unified theory. It requires the background spacetime manifold to have 1+9 dimensions. This idea has stimulated the study of physics in higher dimensional s...Superstring theory is the most hopeful candidate of the grand unified theory. It requires the background spacetime manifold to have 1+9 dimensions. This idea has stimulated the study of physics in higher dimensional spacetime. If the cosmology in very early epoch is higher dimensional spacetime, one may ask, by what way it spontaneously compacts to the present four dimensions? The relations between physical phenomena in higher dimensions and in four dimensions, the mechanisms in the process展开更多
<正> Recent research shows that Hawking radiation from black hole horizon can be treated as a quantumtunneling process, and fermions tunneling method can successfully recover Hawking temperature.In this tunnelin...<正> Recent research shows that Hawking radiation from black hole horizon can be treated as a quantumtunneling process, and fermions tunneling method can successfully recover Hawking temperature.In this tunnelingframework, choosing a set of appropriate matrices γ~μ is an important technique for fermions tunneling method.Inthis paper, motivated by Kerner and Man’s fermions tunneling method of 4 dimension black holes, we further improvethe analysis to investigate Hawking tunneling radiation from a rotating charged black hole in 5-dimensional gaugedsupergravity by constructing a set of appropriate matrices γ~μ for general covariant Dirac equation.Finally, the expectedHawking temperature of the black hole is correctly recovered, which takes the same form as that obtained by othermethods.This method is universal, and can also be directly extend to the other different-type 5-dimensional chargedblack holes.展开更多
We investigate the massive vector particles' Hawking radiation from the neutral rotating Anti-de Sitter(AdS) black holes in conformal gravity by using the tunneling method.It is well known that the dynamics of mas...We investigate the massive vector particles' Hawking radiation from the neutral rotating Anti-de Sitter(AdS) black holes in conformal gravity by using the tunneling method.It is well known that the dynamics of massive vector particles are governed by the Proca field equation.Applying WKB approximation to the Proca equation,the tunneling probabilities and radiation spectrums of the emitted particles are derived.Hawking temperature of the neutral rotating AdS black holes in conformal gravity is recovered,which is consistent with the previous result in the literature.展开更多
This study set out to investigate charged vector particles tunneling via horizons of a pair of accelerating rotating charged NUT black holes under the influence of quantum gravity.To this end,we use the modified Proca...This study set out to investigate charged vector particles tunneling via horizons of a pair of accelerating rotating charged NUT black holes under the influence of quantum gravity.To this end,we use the modified Proca equation incorporating generalized uncertainty principle.Applying the WKB approximation to the field equation,we obtain a modified tunneling rate and the corresponding corrected Hawking temperature for this black hole.Moreover,we analyze the graphical behavior of the corrected Hawking temperature T'_H with respect to the event horizon for the given black hole.By considering quantum gravitational effects on Hawking temperatures,we discuss the stability analysis of this black hole.For a pair of black holes,the temperature T'_H increases with the increase in rotation parameters a andω,correction parameterβ,black hole acceleration a,and arbitrary parameter k,and decreases with the increase in electric e and magnetic charges g.展开更多
基金Project supported by the National Natural Science Foundation of China (Grant No. 10847166)
文摘This paper investigated the massive particle radiation from Gibbons-Maeda black hole by using a semi-classical method. The calculations showed that, if the self-gravitation of the radiated particle is taken into account, the radiation spectrum deviates from exact black body spectrum and the rate of tunneling equals precisely the exponent of the difference of the black hole entropies before and after emission. The conclusion supports the viewpoint of information conservation.
基金Supported by the National Natural Science Foundation of China under Grant No.11647314the Research Foundation of Education Department of Hunan Province under Grant No.18C0427
文摘The exact metric of a Schwarzschild black hole in the true radiation gauge was recently reported. In this work, we base on this gravity and calculate the gravitational deflection of relativistic massive particles up to the fourth post-Minkowskian order. It is found that the result is consistent with the previous formulations for both the case of dropping the fourth-order contribution and the case of light deflection. Our result might be helpful for future high-accuracy observations.
基金Project supported by the National Natural Science Foundation of China.
文摘Superstring theory is the most hopeful candidate of the grand unified theory. It requires the background spacetime manifold to have 1+9 dimensions. This idea has stimulated the study of physics in higher dimensional spacetime. If the cosmology in very early epoch is higher dimensional spacetime, one may ask, by what way it spontaneously compacts to the present four dimensions? The relations between physical phenomena in higher dimensions and in four dimensions, the mechanisms in the process
基金Supported by the Natural Science Foundation of Liaoning Province of China under Grant No.2009A646
文摘<正> Recent research shows that Hawking radiation from black hole horizon can be treated as a quantumtunneling process, and fermions tunneling method can successfully recover Hawking temperature.In this tunnelingframework, choosing a set of appropriate matrices γ~μ is an important technique for fermions tunneling method.Inthis paper, motivated by Kerner and Man’s fermions tunneling method of 4 dimension black holes, we further improvethe analysis to investigate Hawking tunneling radiation from a rotating charged black hole in 5-dimensional gaugedsupergravity by constructing a set of appropriate matrices γ~μ for general covariant Dirac equation.Finally, the expectedHawking temperature of the black hole is correctly recovered, which takes the same form as that obtained by othermethods.This method is universal, and can also be directly extend to the other different-type 5-dimensional chargedblack holes.
基金Supported by the National Natural Science Foundation of China under Grant No.11205048the Foundation for Young Key Teacher of Henan Normal University
文摘We investigate the massive vector particles' Hawking radiation from the neutral rotating Anti-de Sitter(AdS) black holes in conformal gravity by using the tunneling method.It is well known that the dynamics of massive vector particles are governed by the Proca field equation.Applying WKB approximation to the Proca equation,the tunneling probabilities and radiation spectrums of the emitted particles are derived.Hawking temperature of the neutral rotating AdS black holes in conformal gravity is recovered,which is consistent with the previous result in the literature.
基金financial support provided under the Chilean FONDECYT(3170035)
文摘This study set out to investigate charged vector particles tunneling via horizons of a pair of accelerating rotating charged NUT black holes under the influence of quantum gravity.To this end,we use the modified Proca equation incorporating generalized uncertainty principle.Applying the WKB approximation to the field equation,we obtain a modified tunneling rate and the corresponding corrected Hawking temperature for this black hole.Moreover,we analyze the graphical behavior of the corrected Hawking temperature T'_H with respect to the event horizon for the given black hole.By considering quantum gravitational effects on Hawking temperatures,we discuss the stability analysis of this black hole.For a pair of black holes,the temperature T'_H increases with the increase in rotation parameters a andω,correction parameterβ,black hole acceleration a,and arbitrary parameter k,and decreases with the increase in electric e and magnetic charges g.
