排序方式: 共有28条查询结果,搜索用时 15 毫秒
11.
从粒子的Dirac方程出发计算了黎西旋系数,并通过构造合适的零标架,引入广义乌龟坐标变换,Dirac方程被退耦,利用Damour-Ruffinni方法,获得了整体单极动态时空中粒子的霍金辐射谱. 相似文献
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We extend Zhang and Zhao's recent work to black hole with topological defect whose Arnowitt-Deser-Misner mass is no longer identical to its mass parameter. The behaviour of the tunnelling massive particles is investigated, and the emission rate at which massive particles tunnel across the event horizon of the black hole is calculated. The result is consistent with an underlying unitary theory, and takes the same functional form as that of mass-less particles. 相似文献
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This paper studies the thermodynamic properties of the 5D black hole in Einstein-Gauss-Bonnet gravity from the viewpoint of geometrothermodynamics. It is found that the Legendre invariant metrics of the 5D black holes in Einstein-Yang-Mills-Gauss-Bonnet theory and Einstein-Maxwell-Gauss-Bonnet theory reproduce the behavior of the thermodynamic interaction and phase transition structure of the corresponding black hole configurations correctly. It is shown that they are both curved and that the curvature scalar provides information about the phase transition point. 相似文献
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采用薄膜brick-wall方法,计算了动态整体单极黑洞Dorac场的熵.结果表明,通过对时间依赖的截断因子作适当的选择,仍可获得黑洞熵与其视界面积成正比的结论.还发现当黑洞退化为静态时,与已有的结果是吻合的. 相似文献
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Adopting the anomaly cancellation method, initiated by Robinson and
Wilczek recently, this paper discusses Hawking radiation from the
dilaton--(anti) de Sitter black hole. To save the underlying gauge
and general covariance, it introduces covariant fluxes of gauge and
energy--momentum tensor to cancel the gauge and gravitational
anomalies. The result shows that the introduced compensating fluxes
are equivalent to those of a 2-dimensional blackbody radiation at
Hawking temperature with appropriate chemical potential. 相似文献
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In this paper, we study the thermodynamic features of a two-dimensional charged black hole. Weinhold curvature and Ruppeiner curvature are explored as information geometry, respectively. Moreover, based on the Legendre invariant proposed by Hernando Quevedo, the geometro-thermodynamics behavior of this black hole is investigated. 相似文献
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This paper studies the thermodynamic properties of the Garfinkle-Horowitz-Strominger dilaton black hole from the viewpoint of geometry. It calculates the heat capacity and the temperature of the black hole, Weinhold metric and Ruppeiner metric are also obtained respectively. It finds that they are both curved and the scalar curvature of the Weinhold geometry consists with the first-order transition point reproduced from the capacity, while the Ruppeiner one is both in accordance with the first-order and the second-order phase transition points reproduced from the capacity. 相似文献