The quantum nonthermal radiation and horizon surface gravity of an arbitrarily accelerating black hole with electric charge and magnetic charge |
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Authors: | Xie Zhi-Kun Pan Wei-Zhen and Yang Xue-Jun |
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Institution: | Department of Physics and Electronic Information,Shaoxing University,Shaoxing 312000,China |
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Abstract: | Using a new tortoise coordinate transformation,we discuss the quantum nonthermal radiation characteristics near an event horizon by studying the Hamilton-Jacobi equation of a scalar particle in curved space-time,and obtain the event horizon surface gravity and the Hawking temperature on that event horizon.The results show that there is a crossing of particle energy near the event horizon.We derive the maximum overlap of the positive and negative energy levels.It is also found that the Hawking temperature of a black hole depends not only on the time,but also on the angle.There is a problem of dimension in the usual tortoise coordinate,so the present results obtained by using a correct-dimension new tortoise coordinate transformation may be more reasonable. |
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Keywords: | tortoise coordinate transformation black hole quantum nonthermal radiation event horizon surface gravity |
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