共查询到17条相似文献,搜索用时 218 毫秒
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本文延拓Damour-Ruffini方法,研究Kerr-Newman-de Sitter黑洞的Hawking辐射.在保持时空中总能量,总角动量和总电荷守恒的条件下,考虑辐射粒子对时空的反作用与黑洞事件视界和宇宙视界的相互关联后,得到了黑洞辐射谱.此辐射不再是严格的纯热谱与黑洞事件视界和宇宙视界对应Bekenstein-Hawking熵变有关.研究发现其结果仍然符合幺正性原理. 同时给出了黑洞Bekenstein-Hawking熵的修正项. 使人们对黑洞热辐射的研究有了进一步的认识. 相似文献
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利用延拓Damour-Ruffini方法,研究Schwarzschild-de Sitter黑洞的Hawking辐射.在保持时空中总能量守恒的条件下,考虑辐射粒子对时空的反作用和黑洞事件视界与宇宙视界的相互关联后,得到黑洞辐射谱.此辐射不再是严格的纯热谱,与黑洞事件视界和宇宙视界对应Bekenstein-Hawking熵变有关,发现其结果仍然符合幺正性原理.
关键词:
Damour-Ruffini方法
Hawking辐射
能量守恒 相似文献
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引入局域热平衡概念,用Damour-Ruffini方法和薄膜模型研究了缓变动态Kerr-Newman黑洞的Hawking辐射和熵.得到了黑洞的Hawking温度和辐射谱公式,Hawking温度随时间和视界面上的位置而变化,辐射谱为准黑体谱;计算了黑洞熵,当取与静态球对称黑洞情况相同的截断关系时便得到了黑洞的Bekenstein-Hawking熵.结果表明,缓变动态黑洞的温度是局域量,缓变动态黑洞的熵与稳态黑洞情况一样正比于黑洞视界面面积.
关键词:
缓变动态黑洞
Hawking辐射
黑洞熵 相似文献
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在考虑粒子间的自引力相互作用后;首先采用Parikh-Wilczek的半经典隧穿方法对带电粒子与不带电粒子在Reissner-Nordstrm-anti-de Sitter黑洞视界处的隧穿辐射特征进行了研究.其次;推广复路径方法对该黑洞的辐射谱进行研究.两种方法所得的结果都支持Parikh-Wilczek的观点;即黑洞的隧穿率Bekenstein-Hawking熵变有关;真实的辐射谱不是纯热谱. 相似文献
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Li Huaifan Zhang Shengli Wu Yueqin Zhang Lichun Zhao Ren 《The European Physical Journal C - Particles and Fields》2009,63(1):133-138
We extend the classical Damour–Ruffini method and discuss Hawking radiation in Kerr–Newman–de Sitter (KNdS) black hole. Under the condition that the total energy, angular momentum and charge of spacetime are conserved, taking the reaction of the radiation of the particle to the spacetime and the relation between the black hole event horizon and the cosmological horizon into consideration, we derive the black hole radiation spectrum. The radiation spectrum is no longer a pure thermal one. It is related to the change of the Bekenstein–Hawking entropy corresponding the black hole event horizon and the cosmological horizon. It is consistent with the underlying unitary theory. 相似文献
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Generalizing the method proposed by Damour–Ruffini, we discuss Hawking radiation of a Reissner–Nordström–de Sitter (RNdS) black hole. Under the condition that total energy and charge are conserved, taking the reaction of the radiation of particles to the spacetime into consideration and considering the interrelation between the event horizon and cosmological horizon, we investigate radiation spectrum of RNdS spacetime by a new Tortoise coordinate transformation. This radiation spectrum is no longer a purely thermal spectrum. It is related to the changes in the Bekenstein–Hawking entropy corresponding the event horizon and cosmological horizon. The result satisfies the unitary principle. 相似文献
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Improving the membrane model by which the entropy of the black hole is studied, we study the entropy of the black hole in the non-thermal equilibrium state. To give the problem stated here widespread meaning, we discuss the (n 2)-dimensional de Sitter spacetime. Through discussion, we obtain that the black hole‘s entropy which contains two horizons (a black hole‘s horizon and a cosmological horizon) in the non-thermal equilibrium state comprises the entropy corresponding to the black hole‘s horizon and the entropy corresponding to the cosmological horizon. Furthermore, the entropy of the black hole is a natural property of the black hole. The entropy is irrelevant to the radiation field out of the horizon. This deepens the understanding of the relationship between black hole‘s entropy and horizon‘s area. A way to study the bosonic and fermionic entropy of the black hole in high non-thermal equilibrium spacetime is given. 相似文献
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The quantum tunnelling radiation of Schwarzschild de Sitter black hole with a global monopole 总被引:1,自引:0,他引:1 下载免费PDF全文
Applying Parikh's quantum tunnelling method, this paper has studied the quantum
tunnelling radiation of Schwarzschild de Sitter black hole with a global monopole.
The result shows that the tunnelling rates at the event horizon and the cosmological
horizon are related to Bekenstein--Hawking entropy and the derived radiation
spectrum is not precisely thermal when considering energy conservation and
self-gravitation interaction. 相似文献
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Shuzheng Yang Qingquan Jiang Huiling Li 《International Journal of Theoretical Physics》2007,46(3):625-636
The strictly thermal spectrum in dragging coordinate system and the tunneling radiation characteristics of stationary axisymmetry
Kerr-Newman de Sitter black hole is studied. The result shows that the tunneling rates at the event and cosmological horizon
are related to the change of Bekenstein-Hawking entropy and that the factual radiation spectrum is not strictly pure thermal.
Thus an exact correction to the Hawking thermal spectrum is present. 相似文献
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YANG ShuZheng LI HuiLing JIANG QingQuan & LIU MenQuan Institute of Theoretical Physics China West Normal University Nanchong China 《中国科学G辑(英文版)》2007,50(2):249-260
At the event horizon and the cosmological horizon of the stationary axisymmetric Kerr-Newman black hole in the de Sitter space-time background, the tunneling rate of the charged particles is relevant with Bekenstein-Hawking entropy and the real radiation spectrum is not strictly pure thermal, but consistent with the underlying unitary theory in quantum mechanics. This is a feasible interpretation for the paradox of the black hole information loss. Taking the self-gravitation action, energy conservation, angular momentum conservation and charge conservation into account, the derived radiation spectrum is a correct amendment to the Hawking pure thermal spectrum. 相似文献
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Ji-Jian Jiang Yu-Shan Li Jing-Lun Liu Chuan-An Li 《International Journal of Theoretical Physics》2017,56(7):2161-2166
The scatting probability of scalar particles near the event horizon is obtained by solving Klein-Gordon equation in curved space-time. By considering the reaction of a black hole radiation in space-time background, we find that Hawking radiation is not a strictly pure thermal-spectrum and scatting probability is related to the B-H entropy change of black hole. The statistical entropy of black hole is calculated based on the relations between entropy and thermodynamic probability of a macroscopic state in statistical equilibrium. The results show that the statistical entropy of black hole without using any truncation factor is proportional to the area of event horizon. 相似文献