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1.
Considering the back-reaction of emitting particles to the black hole, a “new” horizon is suggested where thermodynamics can
be built in the dynamical black hole. It, at least, means that the thermodynamics of a dynamical black hole should not be
constructed at the original event horizon any more. The temperature, “new” horizon position and radiating particles’ energy
will be consistent again under the theory of equilibrium thermodynamical system.
相似文献
2.
Using the Hamilton-Jacobi method, Hawking radiation from the apparent horizon of a dynamical Vaidya black hole is calculated. The black hole thermodynamics can be built successfully on the apparent horizon. If a relativistic perturbation is given to the apparent horizon, a similar calculation can also lead to a purely thermal spectrum, which corresponds to a modified temperature from the former. The first law of thermodynamics can also be constructed successfully at a new supersurface which has a small deviation from the apparent horizon. When the event horizon is thought as such a deviation from the apparent horizon, the expressions of the characteristic position and temperature are consistent with the previous result that asserts that thermodynamics should be built on the event horizon. It is concluded that the thermodynamics should be constructed on the apparent horizon exactly while the event horizon thermodynamics is just one of the perturbations near the apparent horizon. 相似文献
3.
利用Parikh 和 Wilczek的隧穿模型,在Gibbons-Maeda dilaton 黑洞时空中,通过计算带有电荷和磁荷的粒子在事件视界上的隧穿概率,研究了该黑洞的Hawking辐射.在粒子的隧穿过程中,强调了时空的能量守恒和电磁荷守恒,考虑了隧穿粒子对背景时空的反作用.计算表明,在Gibbons-Maeda dilaton 黑洞时空中,带电磁荷的粒子通过事件视界的隧穿概率取决于粒子出射前后黑洞熵的变化.这表示,黑洞辐射过程中可以满足信息守恒和量子理论的幺正性.
关键词:
黑洞
霍金辐射
量子理论 相似文献
4.
Li-Xin Li 《General Relativity and Gravitation》1996,28(10):1171-1175
A thermodynamical approach is used to solve the back-reaction problem of the Kerr black hole; the dressed mass, the dressed angular momentum, and the dressed entropy are calculated. 相似文献
5.
Using the null geodesic method, Hawking radiation from the horizon of a Schwarzschild black hole is calculated. The thermodynamics can be built successfully on the horizon where the apparent horizon and event horizon are coincident with each other. When a relativistic perturbation is given to the horizon, the first law of thermodynamics can also be constructed at a new supersurface near the horizon successfully. The expressions of the characteristic position and temperature are consistent with the previous result while the thermodynamics was built on the event horizon in a Vaidya black hole. Therefore, the thermodynamics of a dynamical black hole should be constructed on the apparent horizon exactly, and the event horizon thermodynamics is just one of the perturbations near the apparent horizon. 相似文献
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7.
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. 相似文献
8.
We have studied the Hawking radiation of the Kerr-Newman-Kasuya black hole via gauge and gravitational anomaly in the dragging coordinates. The fluxes of the electromagnetic current and the energy momentum tensor for each partial wave in two-dimensional field are obtained. 相似文献
9.
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
10.
We investigate Hawking radiation from a five-dimensional Lovelock black hole using the Hamilton–Jacobi method. The behavior of the rate of radiation is plotted for various values of the ultraviolet correction parameter and the cosmological constant. The results show that, owing to the ultraviolet correction and the presence of dark energy represented by the cosmological constant, the black hole radiates at a slower rate in comparison to the case without ultraviolet correction or cosmological constant. Moreover, the presence of the cosmological constant makes the effect of the ultraviolet correction on the black hole radiation negligible. 相似文献
11.
Based on the work of Kerner and Mann, fermions tunneling from the Horowitz-Strominger Dilaton black hole on the membrane is
studied. Owing to the coupling among electromagnetic field, matter field and gravity field, the Dirac equation of charged
particles is introduced, and according to that, the expected emission temperature is obtained. After the self-gravitational
interaction is considered, it is found that the tunneling rate of fermions also satisfies the underlying Unitary theory as
the case of scalar particles.
Supported by the Natural Science Foundation of Sichuan Education Office (Grant No. 07ZC039) 相似文献
12.
Hawking radiation is viewed as a tunnelling process. In this way the
emission rates of massless particles and massive particles tunnelling
across the event horizon of general stationary axisymmetric black
holes are calculated, separately. The emission spectra of these two
different kinds of outgoing particles have the same functional form
and both are consistent with an underlying unitary theory. 相似文献
13.
Alex B. Nielsen 《General Relativity and Gravitation》2009,41(7):1539-1584
We investigate whether black holes can be defined without using event horizons. In particular we focus on the thermodynamic
properties of event horizons and the alternative, locally defined horizons. We discuss the assumptions and limitations of
the proofs of the zeroth, first and second laws of black hole mechanics for both event horizons and trapping horizons. This
leads to the possibility that black holes may be more usefully defined in terms of trapping horizons. We also review how Hawking
radiation may be seen to arise from trapping horizons and discuss which horizon area should be associated with the gravitational
entropy. 相似文献
14.
Non-equilibrium Landauer transport model for Hawking radiation from a Reissner—Nordstrom black hole 下载免费PDF全文
The recent work of Nation et al., in which the Hawking radiation energy and entropy flow from a black hole is considered to be produced in a one-dimensional Landauer transport process, is extended to the case of a Reissner- Nordstrom black hole. The energy flow contains not only the contribution of the thermal flux but also that of the particle flux. It is found that the charge can also be transported via the one-dimensional quantum tunnel. Because of the existence of the electrostatic potential, the entropy production rate is shown to be smaller than that of the Schwarzschild black hole. 相似文献
15.
We present a short and direct derivation of Hawking radiation by using the Damour-Ruffini method, as taking into account the self-gravitational interaction from the Kerr black hole. It is found that the radiation is not exactly thermal, and because the derivation obeys conservation laws, the non-thermal Hawking radiation can carry information from the black hole. So it can be used to explain the black hole information paradox, and the process satisfies unitary. 相似文献
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用Hamilton-Jacobi方法研究了动态球对称Einstein-Yang-Mills-Chern-Simons 黑洞事件视界处的隧穿辐射特征及其黑洞事件视界处的温度. 其结果表明,黑洞温度及隧穿率与黑洞的固有性质及其动态特征有关. 这对于进一步研究动态黑洞的热力学性质及其相关问题是有意义的. 其方法的重要意义在于研究这类动态黑洞的霍金辐射时, 不仅适用于标量场隧穿辐射的情形, 同时也适用于研究旋量场、矢量场以及引力波的隧穿辐射.
关键词:
Einstein-Yang-Mills-Chern-Simons黑洞
霍金隧穿辐射
Hamilton-Jacobi方程 相似文献
19.
We present a short and direct derivation of Hawking radiation by using the Damour-Ruffini method, as taking into account the self-gravitational interaction from the Kerr black hole. It is found that the radiation is not exactly thermal, and because the derivation obeys conservation laws, the non-thermal Hawking radiation can carry information from the black hole. So it can be used to explain the black hole information paradox, and the process satisfies unitary. 相似文献
20.
We promote the work of Parikh and Wilczek on the black hole radiation to the emission of massive and charged particles from
Garfinkle-Horowitz-Strominger black hole. The energy and charge of the space-time are conservational during the course of
the evaporation. The calculation shows that the emission spectrum is not precisely thermal, while has a correction, and the
conclusion supports the viewpoint of information conservation. 相似文献